From: Oliver Neukum <oneukum@suse.com>
Date: Tue, 13 Sep 2016 14:44:36 +0000 (+0200)
Subject: cdc-acm: cleanup debugging in submission path
X-Git-Tag: v4.9-rc1~146^2~30
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=46e75075baec1f8c239faa74f2549400e1caaa2f;p=linux.git

cdc-acm: cleanup debugging in submission path

Actually make it retutn useful information.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index fef0d8fcd916..faab151d9fdc 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -368,17 +368,17 @@ static int acm_submit_read_urb(struct acm *acm, int index, gfp_t mem_flags)
 	if (!test_and_clear_bit(index, &acm->read_urbs_free))
 		return 0;
 
-	dev_vdbg(&acm->data->dev, "%s - urb %d\n", __func__, index);
-
 	res = usb_submit_urb(acm->read_urbs[index], mem_flags);
 	if (res) {
 		if (res != -EPERM) {
 			dev_err(&acm->data->dev,
-					"%s - usb_submit_urb failed: %d\n",
-					__func__, res);
+					"urb %d failed submission with %d\n",
+					index, res);
 		}
 		set_bit(index, &acm->read_urbs_free);
 		return res;
+	} else {
+		dev_vdbg(&acm->data->dev, "submitted urb %d\n", index);
 	}
 
 	return 0;