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5 years agoALSA: synth: emux: soundfont.c: divide by zero in calc_gus_envelope_time()
Dan Carpenter [Mon, 6 May 2019 12:51:19 +0000 (15:51 +0300)]
ALSA: synth: emux: soundfont.c: divide by zero in calc_gus_envelope_time()

This function is called from load_guspatch() and the rate is specified
by the user.  If they accidentally selected zero then it would crash the
kernel.  I've just changed the zero to a one.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoMerge branch 'for-linus' into for-next
Takashi Iwai [Mon, 6 May 2019 13:07:50 +0000 (15:07 +0200)]
Merge branch 'for-linus' into for-next

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoMAINTAINERS: update git tree for sound entries
Ross Zwisler [Thu, 2 May 2019 17:27:00 +0000 (11:27 -0600)]
MAINTAINERS: update git tree for sound entries

Several sound related entries in MAINTAINERS refer to the old git tree
at "git://git.alsa-project.org/alsa-kernel.git".  This is no longer used
for development, and Takashi Iwai's kernel.org tree is used instead.

Signed-off-by: Ross Zwisler <zwisler@google.com>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda/realtek - Apply the fixup for ASUS Q325UAR
Takashi Iwai [Tue, 30 Apr 2019 13:10:01 +0000 (15:10 +0200)]
ALSA: hda/realtek - Apply the fixup for ASUS Q325UAR

Some ASUS models like Q325UAR with ALC295 codec requires the same
fixup that has been applied to ALC294 codec.  Just copy the entry with
the pin matching to cover ALC295 too.

BugLink: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1784485
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda - Register irq handler after the chip initialization
Takashi Iwai [Tue, 30 Apr 2019 10:18:28 +0000 (12:18 +0200)]
ALSA: hda - Register irq handler after the chip initialization

Currently the IRQ handler in HD-audio controller driver is registered
before the chip initialization.  That is, we have some window opened
between the azx_acquire_irq() call and the CORB/RIRB setup.  If an
interrupt is triggered in this small window, the IRQ handler may
access to the uninitialized RIRB buffer, which leads to a NULL
dereference Oops.

This is usually no big problem since most of Intel chips do register
the IRQ via MSI, and we've already fixed the order of the IRQ
enablement and the CORB/RIRB setup in the former commit b61749a89f82
("sound: enable interrupt after dma buffer initialization"), hence the
IRQ won't be triggered in that room.  However, some platforms use a
shared IRQ, and this may allow the IRQ trigger by another source.

Another possibility is the kdump environment: a stale interrupt might
be present in there, the IRQ handler can be falsely triggered as well.

For covering this small race, let's move the azx_acquire_irq() call
after hda_intel_init_chip() call.  Although this is a bit radical
change, it can cover more widely than checking the CORB/RIRB setup
locally in the callee side.

Reported-by: Liwei Song <liwei.song@windriver.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: usx2y: fix a double free bug
Wenwen Wang [Mon, 29 Apr 2019 17:45:40 +0000 (12:45 -0500)]
ALSA: usx2y: fix a double free bug

In usX2Y_In04_init(), a new urb is firstly created through usb_alloc_urb()
and saved to 'usX2Y->In04urb'. Then, a buffer is allocated through
kmalloc() and saved to 'usX2Y->In04Buf'. If the allocation of the buffer
fails, the error code ENOMEM is returned after usb_free_urb(), which frees
the created urb. However, the urb is actually freed at card->private_free
callback, i.e., snd_usX2Y_card_private_free(). So the free operation here
leads to a double free bug.

To fix the above issue, simply remove usb_free_urb().

Signed-off-by: Wenwen Wang <wang6495@umn.edu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoASoC: hdac_hda: overwrite hdev type to HDA_DEV_ASOC
Bard liao [Sat, 27 Apr 2019 20:53:40 +0000 (04:53 +0800)]
ASoC: hdac_hda: overwrite hdev type to HDA_DEV_ASOC

In ASoC driver, snd_hdac_device_register() will be called by
snd_hdac_ext_bus_device_init() and snd_hdac_device_unregister()
will called by snd_hdac_ext_bus_device_remove(). However when
ASoC codec driver call snd_hda_codec_device_new() to create a
new hda codec, it will assign snd_hda_codec_dev_free() to the
dev_free ops and snd_hda_codec_dev_free() will call
snd_hdac_device_unregister(). As a result, snd_hdac_device_unregister()
will be called twice in ASoC driver. To prevent it, we use hdev
type to determine if the hda codec is registered by legacy HDA
driver or ASoC driver and unregister device in  snd_hda_codec_dev_free()
only if it is a legacy HDA device.
This patch will overwrite the hdev type so that we can know it is
a ASoC device.

Signed-off-by: Bard liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda: fix unregister device twice on ASoC driver
Bard liao [Sat, 27 Apr 2019 20:53:39 +0000 (04:53 +0800)]
ALSA: hda: fix unregister device twice on ASoC driver

snd_hda_codec_device_new() is used by both legacy HDA and ASoC
driver. However, we will call snd_hdac_device_unregister() in
snd_hdac_ext_bus_device_remove() for ASoC device. This patch uses
the type flag in hdac_device struct to determine is it a ASoC device
or legacy HDA device and call snd_hdac_device_unregister() in
snd_hda_codec_dev_free() only if it is a legacy HDA device.

Signed-off-by: Bard liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: line6: use dynamic buffers
Greg Kroah-Hartman [Sun, 28 Apr 2019 16:04:11 +0000 (18:04 +0200)]
ALSA: line6: use dynamic buffers

The line6 driver uses a lot of USB buffers off of the stack, which is
not allowed on many systems, causing the driver to crash on some of
them.  Fix this up by dynamically allocating the buffers with kmalloc()
which allows for proper DMA-able memory.

Reported-by: Christo Gouws <gouws.christo@gmail.com>
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Christo Gouws <gouws.christo@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: usb-audio: Fix a memory leak bug
Wenwen Wang [Sat, 27 Apr 2019 06:06:46 +0000 (01:06 -0500)]
ALSA: usb-audio: Fix a memory leak bug

In parse_audio_selector_unit(), the string array 'namelist' is allocated
through kmalloc_array(), and each string pointer in this array, i.e.,
'namelist[]', is allocated through kmalloc() in the following for loop.
Then, a control instance 'kctl' is created by invoking snd_ctl_new1(). If
an error occurs during the creation process, the string array 'namelist',
including all string pointers in the array 'namelist[]', should be freed,
before the error code ENOMEM is returned. However, the current code does
not free 'namelist[]', resulting in memory leaks.

To fix the above issue, free all string pointers 'namelist[]' in a loop.

Signed-off-by: Wenwen Wang <wang6495@umn.edu>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: gus: fix misuse of %x
Fuqian Huang [Fri, 26 Apr 2019 03:16:24 +0000 (11:16 +0800)]
ALSA: gus: fix misuse of %x

Pointers should be printed with %p or %px rather than
cast to long type and printed with %lx.
Drop the address printing.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda/realtek - EAPD turn on later
Kailang Yang [Fri, 26 Apr 2019 08:35:41 +0000 (16:35 +0800)]
ALSA: hda/realtek - EAPD turn on later

Let EAPD turn on after set pin output.

[ NOTE: This change is supposed to reduce the possible click noises at
  (runtime) PM resume.  The functionality should be same (i.e. the
  verbs are executed correctly) no matter which order is, so this
  should be safe to apply for all codecs -- tiwai ]

Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda/realtek - Fixed Dell AIO speaker noise
Kailang Yang [Fri, 26 Apr 2019 08:13:54 +0000 (16:13 +0800)]
ALSA: hda/realtek - Fixed Dell AIO speaker noise

Fixed Dell AIO speaker noise.
spec->gen.auto_mute_via_amp = 1, this option was solved speaker white
noise at boot.
codec->power_save_node = 0, this option was solved speaker noise at
resume back.

Fixes: 9226665159f0 ("ALSA: hda/realtek - Fix Dell AIO LineOut issue")
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: usb-audio: Handle the error from snd_usb_mixer_apply_create_quirk()
Takashi Iwai [Wed, 24 Apr 2019 11:00:03 +0000 (13:00 +0200)]
ALSA: usb-audio: Handle the error from snd_usb_mixer_apply_create_quirk()

The error from snd_usb_mixer_apply_create_quirk() is ignored in the
current usb-audio driver code, which will continue the probing even
after the error.  Let's take it more serious.

Fixes: 7b1eda223deb ("ALSA: usb-mixer: factor out quirks")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda/realtek - Add new Dell platform for headset mode
Kailang Yang [Wed, 24 Apr 2019 08:34:25 +0000 (16:34 +0800)]
ALSA: hda/realtek - Add new Dell platform for headset mode

Add two Dell platform for headset mode.

[ Note: this is a further correction / addition of the previous
  pin-based quirks for Dell machines; another entry for ALC236 with
  the d-mic pin 0x12 and an entry for ALC295 -- tiwai ]

Fixes: b26e36b7ef36 ("ALSA: hda/realtek - add two more pin configuration sets to quirk table")
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: ps3: Remove set but not used variables 'start_vaddr' and 'pcm_index'
YueHaibing [Wed, 17 Apr 2019 14:57:22 +0000 (22:57 +0800)]
ALSA: ps3: Remove set but not used variables 'start_vaddr' and 'pcm_index'

Fixes gcc '-Wunused-but-set-variable' warnings:

sound/ppc/snd_ps3.c: In function 'snd_ps3_program_dma':
sound/ppc/snd_ps3.c:236:8: warning: variable 'start_vaddr' set but not used [-Wunused-but-set-variable]
sound/ppc/snd_ps3.c: In function 'snd_ps3_pcm_open':
sound/ppc/snd_ps3.c:529:6: warning: variable 'pcm_index' set but not used [-Wunused-but-set-variable]

They are never used and can be removed.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda/realtek - add two more pin configuration sets to quirk table
Hui Wang [Wed, 17 Apr 2019 08:10:32 +0000 (16:10 +0800)]
ALSA: hda/realtek - add two more pin configuration sets to quirk table

We have two Dell laptops which have the codec 10ec0236 and 10ec0256
respectively, the headset mic on them can't work, need to apply the
quirk of ALC255_FIXUP_DELL1_MIC_NO_PRESENCE. So adding their pin
configurations in the pin quirk table.

Cc: <stable@vger.kernel.org>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: core: Don't refer to snd_cards array directly
Takashi Iwai [Tue, 16 Apr 2019 16:18:47 +0000 (18:18 +0200)]
ALSA: core: Don't refer to snd_cards array directly

The snd_cards[] array holds the card pointers that have been currently
registered, and it's exported for the external modules that may need
to refer a card object.  But accessing to this array can be racy
against the driver probe or removal, as the card registration or free
may happen concurrently.

This patch gets rid of the direct access to snd_cards[] array and
provides a helper function to give the card object from the index
number with a refcount management.  Then the caller can access to the
given card object safely, and releases it via snd_card_unref().

While we're at it, add a proper comment to snd_card_unref() and make
it an inlined function for type-safety, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: emu10k1: Drop superfluous id-uniquification behavior
Takashi Iwai [Tue, 16 Apr 2019 16:01:46 +0000 (18:01 +0200)]
ALSA: emu10k1: Drop superfluous id-uniquification behavior

The emu10k1 driver tries to create a unique id string by itself when
it's copied from the card list, but it's rather superfluous, as the
same thing will be done in ALSA core side at the card registration.
Let's drop the code.  This allows us removing snd_cards export.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: core: Fix card races between register and disconnect
Takashi Iwai [Tue, 16 Apr 2019 15:06:33 +0000 (17:06 +0200)]
ALSA: core: Fix card races between register and disconnect

There is a small race window in the card disconnection code that
allows the registration of another card with the very same card id.
This leads to a warning in procfs creation as caught by syzkaller.

The problem is that we delete snd_cards and snd_cards_lock entries at
the very beginning of the disconnection procedure.  This makes the
slot available to be assigned for another card object while the
disconnection procedure is being processed.  Then it becomes possible
to issue a procfs registration with the existing file name although we
check the conflict beforehand.

The fix is simply to move the snd_cards and snd_cards_lock clearances
at the end of the disconnection procedure.  The references to these
entries are merely either from the global proc files like
/proc/asound/cards or from the card registration / disconnection, so
it should be fine to shift at the very end.

Reported-by: syzbot+48df349490c36f9f54ab@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: info: Fix racy addition/deletion of nodes
Takashi Iwai [Tue, 16 Apr 2019 13:25:00 +0000 (15:25 +0200)]
ALSA: info: Fix racy addition/deletion of nodes

The ALSA proc helper manages the child nodes in a linked list, but its
addition and deletion is done without any lock.  This leads to a
corruption if they are operated concurrently.  Usually this isn't a
problem because the proc entries are added sequentially in the driver
probe procedure itself.  But the card registrations are done often
asynchronously, and the crash could be actually reproduced with
syzkaller.

This patch papers over it by protecting the link addition and deletion
with the parent's mutex.  There is "access" mutex that is used for the
file access, and this can be reused for this purpose as well.

Reported-by: syzbot+48df349490c36f9f54ab@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: seq: Correct unlock sequence at snd_seq_client_ioctl_unlock()
Takashi Iwai [Mon, 15 Apr 2019 07:03:01 +0000 (09:03 +0200)]
ALSA: seq: Correct unlock sequence at snd_seq_client_ioctl_unlock()

The doubly unlock sequence at snd_seq_client_ioctl_unlock() is tricky.
I took a direct unref call since I thought it would avoid
misunderstanding, but rather this seems more confusing.  Let's use
snd_seq_client_unlock() consistently even if they look strange to be
called twice, and add more comments for avoiding reader's confusion.

Fixes: 6b580f523172 ("ALSA: seq: Protect racy pool manipulation from OSS sequencer")
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: usb-audio: Add quirk for Focusrite Scarlett Solo
Roope Salmi [Sun, 14 Apr 2019 11:13:06 +0000 (14:13 +0300)]
ALSA: usb-audio: Add quirk for Focusrite Scarlett Solo

The device reports Synch: Synchronous on the playback interface.
This causes regular audible napping on sample rates that are not multiples
of 1 kHz. Fix to Synch: Asynchronous.

Specifically observed on Focusrite Scarlett Solo 2nd generation. I assume
the first generation model has a different device ID. A first generation
Scarlett 2i2 I was able to test advertised Synch: Asynchronous by default.

For example, with a sample rate of 44100 Hz, a silent sample is played
every 40.96 seconds (likely 44.0 samples instead of 44.1 transmitted per
USB frame on average, 4096 being the size of some internal buffer).
There may be some other bug at play here since this doesn't happen
on other platforms. However, a feedback endpoint is listed and using it
fixes the issue. That is the only change in the quirk,
but I didn't find a way to declare only it.

Tested on two units and on two different computers.

Signed-off-by: Roope Salmi <rpsalmi@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda: Initialize ext-bus-specific fields in snd_hdac_bus_init(), too
Takashi Iwai [Wed, 10 Apr 2019 14:00:54 +0000 (16:00 +0200)]
ALSA: hda: Initialize ext-bus-specific fields in snd_hdac_bus_init(), too

Some fields in snd_hdac_bus are ext-bus specific, but they still
should be initialized in snd_hdac_bus_init() for consistency, at
least, for the ones that do need the explicit initialization like the
list head.

Also move the lock field to the more appropriate place and correct the
comment to reflect the recent change where it serves for both the
display power and the link management.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoMerge branch 'for-linus' into for-next
Takashi Iwai [Sat, 13 Apr 2019 08:09:40 +0000 (10:09 +0200)]
Merge branch 'for-linus' into for-next

Back-merge the 5.1 devel branch for the further HD-audio development.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda: Initialize power_state field properly
Takashi Iwai [Sat, 13 Apr 2019 08:04:49 +0000 (10:04 +0200)]
ALSA: hda: Initialize power_state field properly

The recent commit 98081ca62cba ("ALSA: hda - Record the current power
state before suspend/resume calls") made the HD-audio driver to store
the PM state in power_state field.  This forgot, however, the
initialization at power up.  Although the codec drivers usually don't
need to refer to this field in the normal operation, let's initialize
it properly for consistency.

Fixes: 98081ca62cba ("ALSA: hda - Record the current power state before suspend/resume calls")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: seq: Protect racy pool manipulation from OSS sequencer
Takashi Iwai [Fri, 12 Apr 2019 10:44:39 +0000 (12:44 +0200)]
ALSA: seq: Protect racy pool manipulation from OSS sequencer

OSS sequencer emulation still allows to queue and issue the events
that manipulate the client pool concurrently in a racy way.  This
patch serializes the access like the normal sequencer write / ioctl
via taking the client ioctl_mutex.  Since the access to the sequencer
client is done indirectly via a client id number, a new helper to
take/release the mutex is introduced.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: seq: Simplify snd_seq_kernel_client_enqueue() helper
Takashi Iwai [Fri, 12 Apr 2019 10:10:14 +0000 (12:10 +0200)]
ALSA: seq: Simplify snd_seq_kernel_client_enqueue() helper

We have two helpers for queuing a sequencer event from the kernel
client, and both are used only from OSS sequencer layer without any
hop and atomic set.  Let's simplify and unify two helpers into one.

No functional change, just a call pattern change.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: seq: Cover unsubscribe_port() in list_mutex
Takashi Iwai [Fri, 12 Apr 2019 09:37:19 +0000 (11:37 +0200)]
ALSA: seq: Cover unsubscribe_port() in list_mutex

The call of unsubscribe_port() which manages the group count and
module refcount from delete_and_unsubscribe_port() looks racy; it's
not covered by the group list lock, and it's likely a cause of the
reported unbalance at port deletion.  Let's move the call inside the
group list_mutex to plug the hole.

Reported-by: syzbot+e4c8abb920efa77bace9@syzkaller.appspotmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoRevert "ALSA: seq: Protect in-kernel ioctl calls with mutex"
Takashi Iwai [Thu, 11 Apr 2019 17:58:32 +0000 (19:58 +0200)]
Revert "ALSA: seq: Protect in-kernel ioctl calls with mutex"

This reverts commit feb689025fbb6f0aa6297d3ddf97de945ea4ad32.

The fix attempt was incorrect, leading to the mutex deadlock through
the close of OSS sequencer client.  The proper fix needs more
consideration, so let's revert it now.

Fixes: feb689025fbb ("ALSA: seq: Protect in-kernel ioctl calls with mutex")
Reported-by: syzbot+47ded6c0f23016cde310@syzkaller.appspotmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoMerge tag 'asoc-fix-v5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brooni...
Takashi Iwai [Thu, 11 Apr 2019 12:36:30 +0000 (14:36 +0200)]
Merge tag 'asoc-fix-v5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v5.1

A few core fixes along with the driver specific ones, mainly fixing
small issues that only affect x86 platforms for various reasons (their
unusual machine enumeration mechanisms mainly, plus a fix for error
handling in topology).

There's some of the driver fixes that look larger than they are, like
the hdmi-codec changes which resulted in an indentation change, and most
of the other large changes are for new drivers like the STM32 changes.

5 years agoASoC: wcd9335: Fix missing regmap requirement
Marc Gonzalez [Wed, 10 Apr 2019 14:23:38 +0000 (16:23 +0200)]
ASoC: wcd9335: Fix missing regmap requirement

wcd9335.c: undefined reference to 'devm_regmap_add_irq_chip'

Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoALSA: hda: Fix racy display power access
Takashi Iwai [Wed, 10 Apr 2019 10:49:55 +0000 (12:49 +0200)]
ALSA: hda: Fix racy display power access

snd_hdac_display_power() doesn't handle the concurrent calls carefully
enough, and it may lead to the doubly get_power or put_power calls,
when a runtime PM and an async work get called in racy way.

This patch addresses it by reusing the bus->lock mutex that has been
used for protecting the link state change in ext bus code, so that it
can protect against racy display state changes.  The initialization of
bus->lock was moved from snd_hdac_ext_bus_init() to
snd_hdac_bus_init() as well accordingly.

Testcase: igt/i915_pm_rpm/module-reload #glk-dsi
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoASoC: pcm: fix error handling when try_module_get() fails.
Ranjani Sridharan [Mon, 8 Apr 2019 19:30:25 +0000 (12:30 -0700)]
ASoC: pcm: fix error handling when try_module_get() fails.

Handle error before returning when try_module_get() fails
to prevent inconsistent mutex lock/unlock.

Fixes: 52034add7 (ASoC: pcm: update module refcount if
  module_get_upon_open is set)
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: stm32: sai: fix master clock management
Olivier Moysan [Wed, 10 Apr 2019 08:08:36 +0000 (10:08 +0200)]
ASoC: stm32: sai: fix master clock management

When master clock is used, master clock rate is set exclusively.
Parent clocks of master clock cannot be changed after a call to
clk_set_rate_exclusive(). So the parent clock of SAI kernel clock
must be set before.
Ensure also that exclusive rate operations are balanced
in STM32 SAI driver.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: Intel: kbl: fix wrong number of channels
Tzung-Bi Shih [Mon, 8 Apr 2019 09:08:58 +0000 (17:08 +0800)]
ASoC: Intel: kbl: fix wrong number of channels

Fix wrong setting on number of channels.  The context wants to set
constraint to 2 channels instead of 4.

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoALSA: timer: Coding style fixes
Takashi Iwai [Thu, 28 Mar 2019 16:44:53 +0000 (17:44 +0100)]
ALSA: timer: Coding style fixes

Avoid old school C style but do plain and clear way.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: timer: Simplify error path in snd_timer_open()
Takashi Iwai [Thu, 28 Mar 2019 16:11:10 +0000 (17:11 +0100)]
ALSA: timer: Simplify error path in snd_timer_open()

Just a minor refactoring to use the standard goto for error paths in
snd_timer_open() instead of open code.  The first mutex_lock() is
moved to the beginning of the function to make the code clearer.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: seq: Fix race of get-subscription call vs port-delete ioctls
Takashi Iwai [Tue, 9 Apr 2019 16:04:17 +0000 (18:04 +0200)]
ALSA: seq: Fix race of get-subscription call vs port-delete ioctls

The snd_seq_ioctl_get_subscription() retrieves the port subscriber
information as a pointer, while the object isn't protected, hence it
may be deleted before the actual reference.  This race was spotted by
syzkaller and may lead to a UAF.

The fix is simply copying the data in the lookup function that
performs in the rwsem to protect against the deletion.

Reported-by: syzbot+9437020c82413d00222d@syzkaller.appspotmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: seq: Protect in-kernel ioctl calls with mutex
Takashi Iwai [Tue, 9 Apr 2019 15:35:22 +0000 (17:35 +0200)]
ALSA: seq: Protect in-kernel ioctl calls with mutex

ALSA OSS sequencer calls the ioctl function indirectly via
snd_seq_kernel_client_ctl().  While we already applied the protection
against races between the normal ioctls and writes via the client's
ioctl_mutex, this code path was left untouched.  And this seems to be
the cause of still remaining some rare UAF as spontaneously triggered
by syzkaller.

For the sake of robustness, wrap the ioctl_mutex also for the call via
snd_seq_kernel_client_ctl(), too.

Reported-by: syzbot+e4c8abb920efa77bace9@syzkaller.appspotmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: seq: Remove superfluous irqsave flags
Takashi Iwai [Thu, 28 Mar 2019 15:21:01 +0000 (16:21 +0100)]
ALSA: seq: Remove superfluous irqsave flags

spin_lock_irqsave() is used unnecessarily in various places in
sequencer core code although it's pretty obvious that the context is
sleepable.  Remove irqsave and use the plain spin_lock_irq() in such
places for simplicity.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: seq: Align temporary re-locking with irqsave version
Takashi Iwai [Thu, 28 Mar 2019 14:55:08 +0000 (15:55 +0100)]
ALSA: seq: Align temporary re-locking with irqsave version

In a few places in sequencer core, we temporarily unlock / re-lock the
pool spin lock while waiting for the allocation in the blocking mode.
There spin_unlock_irq() / spin_lock_irq() pairs are called while
initially spin_lock_irqsave() is used (and spin_lock_irqrestore() at
the end of the function again).  This is likely OK for now, but it's a
bit confusing and error-prone.

This patch replaces these temporary relocking lines with the irqsave
variant to make the lock/unlock sequence more consistently.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: seq: Use kvmalloc() for cell pools
Takashi Iwai [Thu, 28 Mar 2019 15:09:45 +0000 (16:09 +0100)]
ALSA: seq: Use kvmalloc() for cell pools

Use kvmalloc() for allocating cell pools since the pool size can be
relatively small that may be covered better by slab.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: timer: Revert active callback sync check at close
Takashi Iwai [Tue, 9 Apr 2019 10:25:32 +0000 (12:25 +0200)]
ALSA: timer: Revert active callback sync check at close

This is essentially a revert of the commit a7588c896b05 ("ALSA: timer:
Check ack_list emptiness instead of bit flag").  The intended change
by the commit turns out to be insufficient, as snd_timer_close*()
always calls snd_timer_stop() that deletes the ack_list beforehand.

In theory, we can change the behavior of snd_timer_stop() to sync the
pending ack_list, but this will become a deadlock for the callback
like sequencer that calls again snd_timer_stop() from itself.  So,
reverting the change is a more straightforward solution.

Fixes: a7588c896b05 ("ALSA: timer: Check ack_list emptiness instead of bit flag")
Reported-by: syzbot+58813d77154713f4de15@syzkaller.appspotmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda - Add two more machines to the power_save_blacklist
Hui Wang [Mon, 8 Apr 2019 07:58:11 +0000 (15:58 +0800)]
ALSA: hda - Add two more machines to the power_save_blacklist

Recently we set CONFIG_SND_HDA_POWER_SAVE_DEFAULT to 1 when
configuring the kernel, then two machines were reported to have noise
after installing the new kernel. Put them in the blacklist, the
noise disappears.

https://bugs.launchpad.net/bugs/1821663
Cc: <stable@vger.kernel.org>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoASoC: pcm: update module refcount if module_get_upon_open is set
Ranjani Sridharan [Fri, 5 Apr 2019 16:57:09 +0000 (09:57 -0700)]
ASoC: pcm: update module refcount if module_get_upon_open is set

Setting the module_get_upon_open field for component driver
prevents the module refcount from being incremented during
component probe(). This could lead to the module being
allowed to be unloaded when a pcm stream is open. So,
if this field is set, the module's refcount should be
incremented during pcm open to prevent module removal
when the component is in use. And, the refcount should
be decremented upon pcm close.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: core: conditionally increase module refcount on component open
Ranjani Sridharan [Fri, 5 Apr 2019 16:57:08 +0000 (09:57 -0700)]
ASoC: core: conditionally increase module refcount on component open

Recently, for Intel platforms the "ignore_module_refcount" field
was introduced for the component driver. In order to avoid a
deadlock preventing the PCI modules from being removed
even when the card was idle, the refcounts were not incremented
for the device driver module during component probe.

However, this change introduced a nasty side effect:
the device driver module can be unloaded while a pcm stream is open.

This patch proposes to change the field to be renamed as
"module_get_upon_open". When this field is set, the module
refcount should be incremented on pcm open amd decremented
upon pcm close. This will enable modules to be removed
when no PCM playback/capture happens and prevent removal
when the component is actually in use.

Also, align with the skylake component driver with the new name.

Fixes: b450b878('ASoC: core: don't increase component module refcount
                 unconditionally'
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: stm32: fix sai driver name initialisation
Arnaud Pouliquen [Fri, 5 Apr 2019 09:19:11 +0000 (11:19 +0200)]
ASoC: stm32: fix sai driver name initialisation

This patch fixes the sai driver structure overwriting which results in
a cpu dai name equal NULL.

Fixes: 3e086ed ("ASoC: stm32: add SAI driver")
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: topology: Use the correct dobj to free enum control values and texts
Ranjani Sridharan [Fri, 5 Apr 2019 02:48:33 +0000 (19:48 -0700)]
ASoC: topology: Use the correct dobj to free enum control values and texts

The control values and texts of the enum kcontrol associated
with a widget need to be freed when the widget is removed.
However, both struct snd_soc_dapm_widget and struct soc_enum
contain a dobj member, which resulted in a confusion.
The existing code generates a null pointer dereference by
attempting to free the values and texts from the dobj which
belongs to the widget instead of the dobj belonging to the
enum kcontrol.

The suggested fix is to use the correct dobj member (se->dobj)
of the enum kcontrol.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoALSA: seq: Fix OOB-reads from strlcpy
Zubin Mithra [Thu, 4 Apr 2019 21:33:55 +0000 (14:33 -0700)]
ALSA: seq: Fix OOB-reads from strlcpy

When ioctl calls are made with non-null-terminated userspace strings,
strlcpy causes an OOB-read from within strlen. Fix by changing to use
strscpy instead.

Signed-off-by: Zubin Mithra <zsm@chromium.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoASoC: intel: skylake: add remove() callback for component driver
Ranjani Sridharan [Fri, 5 Apr 2019 00:30:39 +0000 (17:30 -0700)]
ASoC: intel: skylake: add remove() callback for component driver

Topology is not unloaded in the core during unregister_component()
anymore. So, add the remove() callback that will unload the
topology.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: cs35l35: Disable regulators on driver removal
Charles Keepax [Thu, 4 Apr 2019 16:27:20 +0000 (17:27 +0100)]
ASoC: cs35l35: Disable regulators on driver removal

The chips main power supplies VA and VP are enabled during probe but
then never disabled, this will cause warnings from the regulator
framework on driver removal. Fix this by adding a remove callback and
disabling the supplies, whilst doing so follow best practice and put the
chip back into reset as well.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoALSA: xen-front: Do not use stream buffer size before it is set
Oleksandr Andrushchenko [Thu, 4 Apr 2019 12:38:38 +0000 (15:38 +0300)]
ALSA: xen-front: Do not use stream buffer size before it is set

This fixes the regression introduced while moving to Xen shared
buffer implementation.

Fixes: 58f9d806d16a ("ALSA: xen-front: Use Xen common shared buffer implementation")
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Cc: <stable@vger.kernel.org> # v5.0+
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoASoC: rockchip: pdm: change dma burst to 8
Sugar Zhang [Thu, 4 Apr 2019 03:48:11 +0000 (11:48 +0800)]
ASoC: rockchip: pdm: change dma burst to 8

This patch decreases the transfer bursts to avoid the fifo overrun.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: rockchip: pdm: fix regmap_ops hang issue
Sugar Zhang [Wed, 3 Apr 2019 13:40:45 +0000 (21:40 +0800)]
ASoC: rockchip: pdm: fix regmap_ops hang issue

This is because set_fmt ops maybe called when PD is off,
and in such case, regmap_ops will lead system hang.
enale PD before doing regmap_ops.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: simple-card: don't select DPCM via simple-audio-card
Kuninori Morimoto [Thu, 4 Apr 2019 00:52:52 +0000 (09:52 +0900)]
ASoC: simple-card: don't select DPCM via simple-audio-card

commit da215354eb55c ("ASoC: simple-card: merge simple-scu-card")
merged simple-scu-audio-card which can handle DPCM into
simple-audio-card.

By this patch, the judgement to select "normal sound card" or
"DPCM sound card" is based on its CPU/Codec DAI count.
But, because of it, existing "simple-audio-card" user who is
assuming "normal sound card" might select DPCM unintentionally.

To solve this issue, this patch allows "simple-audio-card" user
can select "normal sound card", and "simple-scu-audio-card" user
can select both "normal sound card" and "DPCM sound card".
This keeps compatibility collectry.

Fixes: da215354eb55c ("ASoC: simple-card: merge simple-scu-card")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: audio-graph-card: don't select DPCM via audio-graph-card
Kuninori Morimoto [Thu, 4 Apr 2019 00:52:15 +0000 (09:52 +0900)]
ASoC: audio-graph-card: don't select DPCM via audio-graph-card

commit ae3cb5790906b ("ASoC: audio-graph-card: merge
audio-graph-scu-card") merged audio-graph-scu-card which can
handle DPCM into audio-graph-card.

By this patch, the judgement to select "normal sound card" or
"DPCM sound card" is based on its OF-graph endpoint connection.
But, because of it, existing "audio-graph-card" user who is
assuming "normal sound card" might select DPCM unintentionally.

To solve this issue, this patch allows "audio-graph-card" user
can select "normal sound card", and "audio-graph-scu-card" user
can select both "normal sound card" and "DPCM sound card".
This keeps compatibility collectry.

Fixes: ae3cb5790906b ("ASoC: audio-graph-card: merge audio-graph-scu-card")
Reported-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: tlv320aic32x4: Change author's name
Annaliese McDermond [Thu, 4 Apr 2019 04:17:15 +0000 (21:17 -0700)]
ASoC: tlv320aic32x4: Change author's name

The author of these files has changed her name.  Update
instances in the code of her dead name to current legal
name.

Signed-off-by: Annaliese McDermond <nh6z@nh6z.net>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoALSA: doc: my_chip has no element ioport
Christina Quast [Tue, 2 Apr 2019 12:16:48 +0000 (14:16 +0200)]
ALSA: doc: my_chip has no element ioport

chip->ioport is dereferenced in two places, but the struct is
defined as follows:

struct mychip {
struct snd_card *card;
struct pci_dev *pci;

unsigned long port;
int irq;
};

Signed-off-by: Christina Quast <cquast@hanoverdisplays.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda/realtek - Add quirk for Tuxedo XC 1509
Richard Sailer [Tue, 2 Apr 2019 13:52:04 +0000 (15:52 +0200)]
ALSA: hda/realtek - Add quirk for Tuxedo XC 1509

This adds a SND_PCI_QUIRK(...) line for the Tuxedo XC 1509.

The Tuxedo XC 1509 and the System76 oryp5 are the same barebone
notebooks manufactured by Clevo. To name the fixups both use after the
actual underlying hardware, this patch also changes System76_orpy5
to clevo_pb51ed in 2 enum symbols and one function name,
matching the other pci_quirk entries which are also named after the
device ODM.

Fixes: 7f665b1c3283 ("ALSA: hda/realtek - Headset microphone and internal speaker support for System76 oryp5")
Signed-off-by: Richard Sailer <rs@tuxedocomputers.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda/realtek - Move to ACT_INIT state
Kailang Yang [Wed, 3 Apr 2019 07:31:49 +0000 (15:31 +0800)]
ALSA: hda/realtek - Move to ACT_INIT state

It will be lose Mic JD state when Chrome OS boot and headset was plugged.
Just Implement of reset combo jack JD verb for ACT_PRE_PROBE state.
Intel test result was also failed.
It test passed until changed the initial state to ACT_INIT.
Mic JD will show every time.
This patch also changed the model name as 'alc-chrome-book' for
application of Chrome OS.

Fixes: 10f5b1b85ed1 ("ALSA: hda/realtek - Fixed Headset Mic JD not stable")
Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoASoC: Intel: cht_bsw_max98090_ti: Enable codec clock once and keep it enabled
Hans de Goede [Tue, 2 Apr 2019 10:20:49 +0000 (12:20 +0200)]
ASoC: Intel: cht_bsw_max98090_ti: Enable codec clock once and keep it enabled

Users have been seeing sound stability issues with max98090 codecs since:
commit 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL")

At first that commit broke sound for Chromebook Swanky and Clapper models,
the problem was that the machine-driver has been controlling the wrong
clock on those models since support for them was added. This was hidden by
clk-pmc-atom.c keeping the actual clk on unconditionally.

With the machine-driver controlling the proper clock, sound works again
but we are seeing bug reports describing it as: low volume,
"sounds like played at 10x speed" and instable.

When these issues are hit the following message is seen in dmesg:
"max98090 i2c-193C9890:00: PLL unlocked".

Attempts have been made to fix this by inserting a delay between enabling
the clk and enabling and checking the pll, but this has not helped.

It seems that at least on boards which use pmc_plt_clk_0 as clock,
if we ever disable the clk, the pll looses its lock and after that we get
various issues.

This commit fixes this by enabling the clock once at probe time on
these boards. In essence this restores the old behavior of clk-pmc-atom.c
always keeping the clk on on these boards.

Fixes: 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL")
Reported-by: Mogens Jensen <mogens-jensen@protonmail.com>
Reported-by: Dean Wallace <duffydack73@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: wm_adsp: Check for buffer in trigger stop
Charles Keepax [Tue, 2 Apr 2019 12:49:14 +0000 (13:49 +0100)]
ASoC: wm_adsp: Check for buffer in trigger stop

Trigger stop can be called in situations where trigger start failed
and as such it can't be assumed the buffer is already attached to
the compressed stream or a NULL pointer may be dereferenced.

Fixes: 639e5eb3c7d6 ("ASoC: wm_adsp: Correct handling of compressed streams that restart")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoALSA: uapi: #include <time.h> in asound.h
Daniel Mentz [Fri, 29 Mar 2019 22:48:54 +0000 (15:48 -0700)]
ALSA: uapi: #include <time.h> in asound.h

The uapi header asound.h defines types based on struct timespec. We need
to #include <time.h> to get access to the definition of this struct.

Previously, we encountered the following error message when building
applications with a clang/bionic toolchain:

kernel-headers/sound/asound.h:350:19: error: field has incomplete type 'struct timespec'
  struct timespec trigger_tstamp;
                  ^

The absence of the time.h #include statement does not cause build errors
with glibc, because its version of stdlib.h indirectly includes time.h.

Signed-off-by: Daniel Mentz <danielmentz@google.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda/realtek: Enable headset MIC of Acer TravelMate B114-21 with ALC233
Jian-Hong Pan [Mon, 1 Apr 2019 03:25:05 +0000 (11:25 +0800)]
ALSA: hda/realtek: Enable headset MIC of Acer TravelMate B114-21 with ALC233

The Acer TravelMate B114-21 laptop cannot detect and record sound from
headset MIC.  This patch adds the ALC233_FIXUP_ACER_HEADSET_MIC HDA verb
quirk chained with ALC233_FIXUP_ASUS_MIC_NO_PRESENCE pin quirk to fix
this issue.

[ fixed the missing brace and reordered the entry -- tiwai ]

Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Reviewed-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoASoC: dapm: set power_check callback for widgets that shouldnt be always on
Ranjani Sridharan [Sat, 2 Mar 2019 01:08:53 +0000 (19:08 -0600)]
ASoC: dapm: set power_check callback for widgets that shouldnt be always on

Currently, buffers, schedulers, src's, encoders, decoders
and effect type dapm widgets remain always on as their
power_check method is not set. Setting this callback allows these
widgets in the audio path to be powered managed properly.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: dpcm: skip missing substream while applying symmetry
Jerome Brunet [Mon, 1 Apr 2019 13:03:54 +0000 (15:03 +0200)]
ASoC: dpcm: skip missing substream while applying symmetry

If for any reason, the backend does not have the requested substream
(like capture on a playback only backend), the BE will be skipped in
dpcm_be_dai_startup().

However, dpcm_apply_symmetry() does not skip those BE and will
dereference the be_substream (NULL) pointer anyway.

Like in dpcm_be_dai_startup(), just skip those BE.

Fixes: 906c7d690c3b ("ASoC: dpcm: Apply symmetry for DPCM")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: tlv320aic32x4: Fix Common Pins
Annaliese McDermond [Sat, 30 Mar 2019 16:02:02 +0000 (09:02 -0700)]
ASoC: tlv320aic32x4: Fix Common Pins

The common pins were mistakenly not added to the DAPM graph.
Adding these pins will allow valid graphs to be created.

Signed-off-by: Annaliese McDermond <nh6z@nh6z.net>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoMerge branch 'topic/timer-fixes' into for-next
Takashi Iwai [Thu, 28 Mar 2019 07:33:20 +0000 (08:33 +0100)]
Merge branch 'topic/timer-fixes' into for-next

Pull yet another ALSA core timer fixes and cleanups.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: us122l: Use alloc_pages_exact()
Takashi Iwai [Sat, 16 Mar 2019 07:48:52 +0000 (08:48 +0100)]
ALSA: us122l: Use alloc_pages_exact()

alloc_pages_exact() is more suitable choice for allocating the sound
buffers, as it doesn't need to align with power-of-two.  Along with
the conversion, we can drop __GFP_COMP as well.

The patch also replace the error messages to be more explicit.

Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: Replace snd_malloc_pages() and snd_free_pages() with standard helpers, take#2
Takashi Iwai [Fri, 23 Nov 2018 18:38:13 +0000 (19:38 +0100)]
ALSA: Replace snd_malloc_pages() and snd_free_pages() with standard helpers, take#2

snd_malloc_pages() and snd_free_pages() are merely thin wrappers of
the standard page allocator / free functions.  Even the arguments are
compatible with some standard helpers, so there is little merit of
keeping these wrappers.

This patch replaces the all existing callers of snd_malloc_pages() and
snd_free_pages() with the direct calls of the standard helper
functions.  In this version, we use a recently introduced one,
alloc_pages_exact(), which suits better than the old
snd_malloc_pages() implementation for our purposes.  Then we can avoid
the waste of pages by alignment to power-of-two.

Since alloc_pages_exact() does split pages, we need no longer
__GFP_COMP flag; or better to say, we must not pass __GFP_COMP to
alloc_pages_exact().  So the former unconditional addition of
__GFP_COMP flag in snd_malloc_pages() is dropped, as well as in most
other places.

Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: timer: Make snd_timer_close() really kill pending actions
Takashi Iwai [Wed, 27 Mar 2019 16:02:40 +0000 (17:02 +0100)]
ALSA: timer: Make snd_timer_close() really kill pending actions

snd_timer_close() is supposed to close the timer instance and sync
with the deactivation of pending actions.  However, there are still
some overlooked cases:

- It calls snd_timer_stop() at the beginning, but some other might
  re-trigger the timer right after that.

- snd_timer_stop() calls del_timer_sync() only when all belonging
  instances are closed.  If multiple instances were assigned to a
  timer object and one is closed, the timer is still running.  Then
  the pending action assigned to this timer might be left.

Actually either of the above is the likely cause of the reported
syzkaller UAF.

This patch plug these holes by introducing SNDRV_TIMER_IFLG_DEAD
flag.  This is set at the beginning of snd_timer_close(), and the flag
is checked at snd_timer_start*() and else, so that no longer new
action is left after snd_timer_close().

Reported-by: syzbot+d5136d4d3240cbe45a2a@syzkaller.appspotmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: timer: Check ack_list emptiness instead of bit flag
Takashi Iwai [Wed, 27 Mar 2019 15:56:08 +0000 (16:56 +0100)]
ALSA: timer: Check ack_list emptiness instead of bit flag

For checking the pending timer instance that is still left on the
timer object that is being closed, we set/clear a bit flag
SNDRV_TIMER_IFLG_CALLBACK around the call of callbacks.  This can be
simplified by replace with the list_empty() call for ti->ack_list.
This covers the existence more comprehensively and safely.

A gratis bonus is that we can get rid of SNDRV_TIMER_IFLG_CALLBACK bit
flag definition as well.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: timer: Make sure to clear pending ack list
Takashi Iwai [Wed, 27 Mar 2019 15:51:58 +0000 (16:51 +0100)]
ALSA: timer: Make sure to clear pending ack list

When a card is under disconnection, we bail out immediately at each
timer interrupt or tasklet.  This might leave some items left in ack
list.  For a better integration of the upcoming change to check
ack_list emptiness, clear out the whole list upon the emergency exit
route.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: timer: Unify timer callback process code
Takashi Iwai [Wed, 27 Mar 2019 15:42:51 +0000 (16:42 +0100)]
ALSA: timer: Unify timer callback process code

The timer core has two almost identical code for processing callbacks:
once in snd_timer_interrupt() for fast callbacks and another in
snd_timer_tasklet() for delayed callbacks.  Let's unify them.

In the new version, the resolution is read from ti->resolution at each
call, and this must be fine; ti->resolution is set in the preparation
step in snd_timer_interrupt().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: emux: Add support of loading GUS-patch
Takashi Iwai [Tue, 26 Mar 2019 16:32:02 +0000 (17:32 +0100)]
ALSA: emux: Add support of loading GUS-patch

It's a feature request for the ancient sutff, but it's still valid;
the loading of a GUS-patch isn't available via hwdep device although
it's supported over OSS sequencer.  The only missing piece is the call
of snd_soundfont_load_guspatch() in synth emux hwdep code.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda/realtek - Fix speakers on Acer Predator Helios 500 Ryzen laptops
Bernhard Rosenkraenzer [Mon, 4 Mar 2019 23:38:19 +0000 (00:38 +0100)]
ALSA: hda/realtek - Fix speakers on Acer Predator Helios 500 Ryzen laptops

On an Acer Predator Helios 500 (Ryzen version), the laptop's speakers
don't work out of the box.

The problem can be worked around with hdajackretask, remapping the
"Black Headphone, Right side" pin (0x21) to the Internal speaker.

This patch adds a quirk to change this mapping by default.

[ corrected ALC299_FIXUP_PREDATOR_SPK definition and adapted for the
  latest tree by tiwai ]

Signed-off-by: Bernhard Rosenkraenzer <bero@lindev.ch>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoASoC: Intel: Skylake: enable S24_LE format support
Jenny TC [Sat, 23 Mar 2019 13:10:10 +0000 (18:40 +0530)]
ASoC: Intel: Skylake: enable S24_LE format support

To enable S24_LE format, sample_type in topology fw has to be set to 1.
But sample_type defined in topology firmware configuration is not
getting reflected in the dsp param. This patch sets sample_type in base
config so that the sample type defined in the topology firmware is reflected
in the dsp params. This issues was uncovered while debugging the S24_LE format
which require the MSB byte in 32 bit word to be skipped. Setting sample_type
in topology firmware to 1 helps to skip MSB byte word.

Signed-off-by: Jenny TC <jenny.tc@intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoALSA: aloop: Support S24 sample formats
Timo Wischer [Mon, 25 Mar 2019 15:14:14 +0000 (16:14 +0100)]
ALSA: aloop: Support S24 sample formats

Currently snd_aloop supports only S16 and S32 audio sample formats. With
this patch the S24 formats are also supported.

Signed-off-by: Timo Wischer <twischer@de.adit-jv.com>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: pcm: Don't suspend stream in unrecoverable PCM state
Takashi Iwai [Mon, 25 Mar 2019 09:38:58 +0000 (10:38 +0100)]
ALSA: pcm: Don't suspend stream in unrecoverable PCM state

Currently PCM core sets each opened stream forcibly to SUSPENDED state
via snd_pcm_suspend_all() call, and the user-space is responsible for
re-triggering the resume manually either via snd_pcm_resume() or
prepare call.  The scheme works fine usually, but there are corner
cases where the stream can't be resumed by that call: the streams
still in OPEN state before finishing hw_params.  When they are
suspended, user-space cannot perform resume or prepare because they
haven't been set up yet.  The only possible recovery is to re-open the
device, which isn't nice at all.  Similarly, when a stream is in
DISCONNECTED state, it makes no sense to change it to SUSPENDED
state.  Ditto for in SETUP state; which you can re-prepare directly.

So, this patch addresses these issues by filtering the PCM streams to
be suspended by checking the PCM state.  When a stream is in either
OPEN, SETUP or DISCONNECTED as well as already SUSPENDED, the suspend
action is skipped.

To be noted, this problem was originally reported for the PCM runtime
PM on HD-audio.  And, the runtime PM problem itself was already
addressed (although not intended) by the code refactoring commits
3d21ef0b49f8 ("ALSA: pcm: Suspend streams globally via device type PM
ops") and 17bc4815de58 ("ALSA: pci: Remove superfluous
snd_pcm_suspend*() calls").  These commits eliminated the
snd_pcm_suspend*() calls from the runtime PM suspend callback code
path, hence the racy OPEN state won't appear while runtime PM.
(FWIW, the race window is between snd_pcm_open_substream() and the
first power up in azx_pcm_open().)

Although the runtime PM issue was already "fixed", the same problem is
still present for the system PM, hence this patch is still needed.
And for stable trees, this patch alone should suffice for fixing the
runtime PM problem, too.

Reported-and-tested-by: Jon Hunter <jonathanh@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoASoC: dapm: Fix NULL pointer dereference in snd_soc_dapm_free_kcontrol
Pankaj Bharadiya [Fri, 22 Mar 2019 12:30:09 +0000 (18:00 +0530)]
ASoC: dapm: Fix NULL pointer dereference in snd_soc_dapm_free_kcontrol

w_text_param can be NULL and it is being dereferenced without checking.
Add the missing sanity check to prevent  NULL pointer dereference.

Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: intel: Fix crash at suspend/resume after failed codec registration
Guenter Roeck [Fri, 22 Mar 2019 22:39:48 +0000 (15:39 -0700)]
ASoC: intel: Fix crash at suspend/resume after failed codec registration

If codec registration fails after the ASoC Intel SST driver has been probed,
the kernel will Oops and crash at suspend/resume.

general protection fault: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 PID: 2811 Comm: cat Tainted: G        W         4.19.30 #15
Hardware name: GOOGLE Clapper, BIOS Google_Clapper.5216.199.7 08/22/2014
RIP: 0010:snd_soc_suspend+0x5a/0xd21
Code: 03 80 3c 10 00 49 89 d7 74 0b 48 89 df e8 71 72 c4 fe 4c 89
fa 48 8b 03 48 89 45 d0 48 8d 98 a0 01 00 00 48 89 d8 48 c1 e8 03
<8a> 04 10 84 c0 0f 85 85 0c 00 00 80 3b 00 0f 84 6b 0c 00 00 48 8b
RSP: 0018:ffff888035407750 EFLAGS: 00010202
RAX: 0000000000000034 RBX: 00000000000001a0 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff88805c417098
RBP: ffff8880354077b0 R08: dffffc0000000000 R09: ffffed100b975718
R10: 0000000000000001 R11: ffffffff949ea4a3 R12: 1ffff1100b975746
R13: dffffc0000000000 R14: ffff88805cba4588 R15: dffffc0000000000
FS:  0000794a78e91b80(0000) GS:ffff888068d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007bd5283ccf58 CR3: 000000004b7aa000 CR4: 00000000001006e0
Call Trace:
? dpm_complete+0x67b/0x67b
? i915_gem_suspend+0x14d/0x1ad
sst_soc_prepare+0x91/0x1dd
? sst_be_hw_params+0x7e/0x7e
dpm_prepare+0x39a/0x88b
dpm_suspend_start+0x13/0x9d
suspend_devices_and_enter+0x18f/0xbd7
? arch_suspend_enable_irqs+0x11/0x11
? printk+0xd9/0x12d
? lock_release+0x95f/0x95f
? log_buf_vmcoreinfo_setup+0x131/0x131
? rcu_read_lock_sched_held+0x140/0x22a
? __bpf_trace_rcu_utilization+0xa/0xa
? __pm_pr_dbg+0x186/0x190
? pm_notifier_call_chain+0x39/0x39
? suspend_test+0x9d/0x9d
pm_suspend+0x2f4/0x728
? trace_suspend_resume+0x3da/0x3da
? lock_release+0x95f/0x95f
? kernfs_fop_write+0x19f/0x32d
state_store+0xd8/0x147
? sysfs_kf_read+0x155/0x155
kernfs_fop_write+0x23e/0x32d
__vfs_write+0x108/0x608
? vfs_read+0x2e9/0x2e9
? rcu_read_lock_sched_held+0x140/0x22a
? __bpf_trace_rcu_utilization+0xa/0xa
? debug_smp_processor_id+0x10/0x10
? selinux_file_permission+0x1c5/0x3c8
? rcu_sync_lockdep_assert+0x6a/0xad
? __sb_start_write+0x129/0x2ac
vfs_write+0x1aa/0x434
ksys_write+0xfe/0x1be
? __ia32_sys_read+0x82/0x82
do_syscall_64+0xcd/0x120
entry_SYSCALL_64_after_hwframe+0x49/0xbe

In the observed situation, the problem is seen because the codec driver
failed to probe due to a hardware problem.

max98090 i2c-193C9890:00: Failed to read device revision: -1
max98090 i2c-193C9890:00: ASoC: failed to probe component -1
cht-bsw-max98090 cht-bsw-max98090: ASoC: failed to instantiate card -1
cht-bsw-max98090 cht-bsw-max98090: snd_soc_register_card failed -1
cht-bsw-max98090: probe of cht-bsw-max98090 failed with error -1

The problem is similar to the problem solved with commit 2fc995a87f2e
("ASoC: intel: Fix crash at suspend/resume without card registration"),
but codec registration fails at a later point. At that time, the pointer
checked with the above mentioned commit is already set, but it is not
cleared if the device is subsequently removed. Adding a remove function
to clear the pointer fixes the problem.

Cc: stable@vger.kernel.org
Cc: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Cc: Curtis Malainey <cujomalainey@chromium.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoALSA: hda/ca0132 - Simplify alt firmware loading code
Takashi Iwai [Fri, 22 Mar 2019 14:51:36 +0000 (15:51 +0100)]
ALSA: hda/ca0132 - Simplify alt firmware loading code

ca0132 codec driver loads the firmware selectively depending on the
model in addition to the fallback of the default firmware.  The code
works good, but a minor problem is that the current code seems
confusing for Clang where it spews a warning about uninitialized
variable.

This patch simplifies the code flow for such a false-positive
warning.  After this refactoring, the ca0132_spec.alt_firmware_present
field is no longer used, hence it's eliminated as well.

Reported-and-tested-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: pcm: Fix possible OOB access in PCM oss plugins
Takashi Iwai [Fri, 22 Mar 2019 15:00:54 +0000 (16:00 +0100)]
ALSA: pcm: Fix possible OOB access in PCM oss plugins

The PCM OSS emulation converts and transfers the data on the fly via
"plugins".  The data is converted over the dynamically allocated
buffer for each plugin, and recently syzkaller caught OOB in this
flow.

Although the bisection by syzbot pointed out to the commit
65766ee0bf7f ("ALSA: oss: Use kvzalloc() for local buffer
allocations"), this is merely a commit to replace vmalloc() with
kvmalloc(), hence it can't be the cause.  The further debug action
revealed that this happens in the case where a slave PCM doesn't
support only the stereo channels while the OSS stream is set up for a
mono channel.  Below is a brief explanation:

At each OSS parameter change, the driver sets up the PCM hw_params
again in snd_pcm_oss_change_params_lock().  This is also the place
where plugins are created and local buffers are allocated.  The
problem is that the plugins are created before the final hw_params is
determined.  Namely, two snd_pcm_hw_param_near() calls for setting the
period size and periods may influence on the final result of channels,
rates, etc, too, while the current code has already created plugins
beforehand with the premature values.  So, the plugin believes that
channels=1, while the actual I/O is with channels=2, which makes the
driver reading/writing over the allocated buffer size.

The fix is simply to move the plugin allocation code after the final
hw_params call.

Reported-by: syzbot+d4503ae45b65c5bc1194@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda/realtek: Enable headset MIC of ASUS X430UN and X512DK with ALC256
Jian-Hong Pan [Fri, 22 Mar 2019 03:37:22 +0000 (11:37 +0800)]
ALSA: hda/realtek: Enable headset MIC of ASUS X430UN and X512DK with ALC256

The ASUS X430UN and X512DK with ALC256 cannot detect the headset MIC
until ALC256_FIXUP_ASUS_MIC_NO_PRESENCE quirk applied.

Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda/realtek: Enable headset mic of ASUS P5440FF with ALC256
Chris Chiu [Fri, 22 Mar 2019 03:37:20 +0000 (11:37 +0800)]
ALSA: hda/realtek: Enable headset mic of ASUS P5440FF with ALC256

The ASUS laptop P5440FF with ALC256 can't detect the headset microphone
until ALC256_FIXUP_ASUS_MIC_NO_PRESENCE quirk applied.

Signed-off-by: Chris Chiu <chiu@endlessm.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda/realtek: Enable ASUS X441MB and X705FD headset MIC with ALC256
Jian-Hong Pan [Fri, 22 Mar 2019 03:37:18 +0000 (11:37 +0800)]
ALSA: hda/realtek: Enable ASUS X441MB and X705FD headset MIC with ALC256

The ASUS laptop X441MB and X705FD with ALC256 cannot detect the headset
MIC until ALC256_FIXUP_ASUS_MIC_NO_PRESENCE quirk applied.

Signed-off-by: Chris Chiu <chiu@endlessm.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoASoC: fsl_esai: fix channel swap issue when stream starts
S.j. Wang [Wed, 27 Feb 2019 06:31:12 +0000 (06:31 +0000)]
ASoC: fsl_esai: fix channel swap issue when stream starts

There is very low possibility ( < 0.1% ) that channel swap happened
in beginning when multi output/input pin is enabled. The issue is
that hardware can't send data to correct pin in the beginning with
the normal enable flow.

This is hardware issue, but there is no errata, the workaround flow
is that: Each time playback/recording, firstly clear the xSMA/xSMB,
then enable TE/RE, then enable xSMB and xSMA (xSMB must be enabled
before xSMA). Which is to use the xSMA as the trigger start register,
previously the xCR_TE or xCR_RE is the bit for starting.

Fixes commit 43d24e76b698 ("ASoC: fsl_esai: Add ESAI CPU DAI driver")
Cc: <stable@vger.kernel.org>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: fsl_asrc: add constraint for the asrc of older version
S.j. Wang [Sat, 2 Mar 2019 05:52:19 +0000 (05:52 +0000)]
ASoC: fsl_asrc: add constraint for the asrc of older version

There is a constraint for the channel number setting on the
asrc of older version (e.g. imx35), the channel number should
be even, odd number isn't valid.

So add this constraint when the asrc of older version is used.

Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: cs4270: Set auto-increment bit for register writes
Daniel Mack [Wed, 20 Mar 2019 21:41:56 +0000 (22:41 +0100)]
ASoC: cs4270: Set auto-increment bit for register writes

The CS4270 does not by default increment the register address on
consecutive writes. During normal operation it doesn't matter as all
register accesses are done individually. At resume time after suspend,
however, the regcache code gathers the biggest possible block of
registers to sync and sends them one on one go.

To fix this, set the INCR bit in all cases.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoALSA: hda/realtek - Add support for Acer Aspire E5-523G/ES1-432 headset mic
Chris Chiu [Thu, 21 Mar 2019 09:17:31 +0000 (17:17 +0800)]
ALSA: hda/realtek - Add support for Acer Aspire E5-523G/ES1-432 headset mic

The Acer laptop Aspire E5-523G and ES1-432 with ALC255 can't detect
the headset microphone until ALC255_FIXUP_ACER_MIC_NO_PRESENCE quirk
applied.

Signed-off-by: Chris Chiu <chiu@endlessm.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda/realtek: Enable headset MIC of Acer Aspire Z24-890 with ALC286
Jian-Hong Pan [Thu, 21 Mar 2019 08:39:04 +0000 (16:39 +0800)]
ALSA: hda/realtek: Enable headset MIC of Acer Aspire Z24-890 with ALC286

The Acer Aspire Z24-890 cannot detect the headset MIC until
ALC286_FIXUP_ACER_AIO_HEADSET_MIC quirk applied.

Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: seq: oss: Fix Spectre v1 vulnerability
Gustavo A. R. Silva [Wed, 20 Mar 2019 23:42:01 +0000 (18:42 -0500)]
ALSA: seq: oss: Fix Spectre v1 vulnerability

dev is indirectly controlled by user-space, hence leading to
a potential exploitation of the Spectre variant 1 vulnerability.

This issue was detected with the help of Smatch:

sound/core/seq/oss/seq_oss_synth.c:626 snd_seq_oss_synth_make_info() warn: potential spectre issue 'dp->synths' [w] (local cap)

Fix this by sanitizing dev before using it to index dp->synths.

Notice that given that speculation windows are large, the policy is
to kill the speculation on the first load and not worry if it can be
completed with a dependent load/store [1].

[1] https://lore.kernel.org/lkml/20180423164740.GY17484@dhcp22.suse.cz/

Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: rawmidi: Fix potential Spectre v1 vulnerability
Gustavo A. R. Silva [Wed, 20 Mar 2019 21:15:24 +0000 (16:15 -0500)]
ALSA: rawmidi: Fix potential Spectre v1 vulnerability

info->stream is indirectly controlled by user-space, hence leading to
a potential exploitation of the Spectre variant 1 vulnerability.

This issue was detected with the help of Smatch:

sound/core/rawmidi.c:604 __snd_rawmidi_info_select() warn: potential spectre issue 'rmidi->streams' [r] (local cap)

Fix this by sanitizing info->stream before using it to index
rmidi->streams.

Notice that given that speculation windows are large, the policy is
to kill the speculation on the first load and not worry if it can be
completed with a dependent load/store [1].

[1] https://lore.kernel.org/lkml/20180423164740.GY17484@dhcp22.suse.cz/

Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: hda/realtek: Enable headset MIC of Acer AIO with ALC286
Jian-Hong Pan [Fri, 15 Mar 2019 09:51:09 +0000 (17:51 +0800)]
ALSA: hda/realtek: Enable headset MIC of Acer AIO with ALC286

Some Acer AIO desktops like Veriton Z6860G, Z4860G and Z4660G cannot
record sound from headset MIC.  This patch adds the
ALC286_FIXUP_ACER_AIO_HEADSET_MIC quirk to fix this issue.

Fixes: 9f8aefed9623 ("ALSA: hda/realtek: Fix mic issue on Acer AIO Veriton Z4660G")
Fixes: b72f936f6b32 ("ALSA: hda/realtek: Fix mic issue on Acer AIO Veriton Z4860G/Z6860G")
Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Reviewed-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoASoC: stm32: dfsdm: fix debugfs warnings on entry creation
Olivier Moysan [Mon, 4 Mar 2019 14:52:44 +0000 (15:52 +0100)]
ASoC: stm32: dfsdm: fix debugfs warnings on entry creation

Register platform component with a prefix, to avoid warnings
on debugfs entries creation, due to component name
redundancy.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: stm32: dfsdm: manage multiple prepare
Olivier Moysan [Mon, 4 Mar 2019 14:52:43 +0000 (15:52 +0100)]
ASoC: stm32: dfsdm: manage multiple prepare

The DFSDM must be stopped when a new setting is applied.
restart systematically DFSDM on multiple prepare calls,
to apply changes.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: wm_adsp: Shutdown any compressed streams on DSP watchdog timeout
Charles Keepax [Tue, 19 Mar 2019 11:52:07 +0000 (11:52 +0000)]
ASoC: wm_adsp: Shutdown any compressed streams on DSP watchdog timeout

If a watchdog timeout is received from the DSP it is safe to assume the
DSP is not functioning anymore and as such any active compressed streams
should be put into an error state.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: wm_adsp: Add locking to wm_adsp2_bus_error
Charles Keepax [Tue, 19 Mar 2019 11:52:06 +0000 (11:52 +0000)]
ASoC: wm_adsp: Add locking to wm_adsp2_bus_error

Best to lock across handling the bus error to ensure the DSP doesn't
change power state as we are reading the status registers.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
5 years agoASoC: wm_adsp: Correct error messages in wm_adsp_buffer_get_error
Charles Keepax [Tue, 19 Mar 2019 11:52:05 +0000 (11:52 +0000)]
ASoC: wm_adsp: Correct error messages in wm_adsp_buffer_get_error

During recent logging improvements it seems two error messages lost
their updates during patch application/rebasing. Add these back in.

Fixes: 0d3fba3e7a56 ("ASoC: wm_adsp: Improve logging messages")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>