From: Jes Sorensen <Jes.Sorensen@redhat.com>
Date: Thu, 14 Apr 2016 20:37:18 +0000 (-0400)
Subject: rtl8xxxu: Fix OOPS if user tries to add device via /sys
X-Git-Tag: v4.7-rc1~154^2~146^2~42
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=6a62f9d5273dbc8ec776717a73a8a223b9e5f38e;p=linux.git

rtl8xxxu: Fix OOPS if user tries to add device via /sys

This driver relies on driver_info in struct usb_device_id, so allowing
adding a device via /sys/bus/usb/drivers/rtl8xxxu/new_id will cause a
NULL pointer dereference.

Set .no_dynamic_id = 1 to disable hot add of USB IDs.

Reported-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---

diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c
index cf7832bfdde8..2d92e643fcd6 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c
@@ -10141,6 +10141,7 @@ static struct usb_driver rtl8xxxu_driver = {
 	.probe = rtl8xxxu_probe,
 	.disconnect = rtl8xxxu_disconnect,
 	.id_table = dev_table,
+	.no_dynamic_id = 1,
 	.disable_hub_initiated_lpm = 1,
 };