commit 844db450e6e2cf710752af1a019a877af390b541
author Hans de Goede <hdegoede@redhat.com> Sun Sep 09 07:30:02 2012 -0300
committer Mauro Carvalho Chehab <mchehab@redhat.com> Thu Sep 13 17:52:58 2012 -0300
tree 0c43bce1f503d14cabdad012ff00b6a9c6ad41b8
parent ff8f25d326da5e7cf6216f368116744341fceb12

[media] gspca: Update / fix various comments wrt workqueue usb_lock usage

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/usb/gspca/sn9c20x.c

diff --git a/drivers/media/usb/gspca/sn9c20x.c b/drivers/media/usb/gspca/sn9c20x.c
index b9c6f17..41f769f 100644
--- a/drivers/media/usb/gspca/sn9c20x.c
+++ b/drivers/media/usb/gspca/sn9c20x.c
@@ -2197,8 +2197,10 @@
 	struct gspca_dev *gspca_dev = &sd->gspca_dev;
 	s32 qual = v4l2_ctrl_g_ctrl(sd->jpegqual);
 
+	/* To protect gspca_dev->usb_buf and gspca_dev->usb_err */
 	mutex_lock(&gspca_dev->usb_lock);
 	PDEBUG(D_STREAM, "qual_upd %d%%", qual);
+	gspca_dev->usb_err = 0;
 	set_quality(gspca_dev, qual);
 	mutex_unlock(&gspca_dev->usb_lock);
 }