V4L/DVB (9875): gspca - main: Fix vidioc_s_jpegcomp locking.
Signed-off-by: Jim Paris <jim@jtan.com>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index 748a87e..02a6e9e 100644
--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -1264,10 +1264,10 @@
struct gspca_dev *gspca_dev = priv;
int ret;
- if (mutex_lock_interruptible(&gspca_dev->usb_lock))
- return -ERESTARTSYS;
if (!gspca_dev->sd_desc->set_jcomp)
return -EINVAL;
+ if (mutex_lock_interruptible(&gspca_dev->usb_lock))
+ return -ERESTARTSYS;
ret = gspca_dev->sd_desc->set_jcomp(gspca_dev, jpegcomp);
mutex_unlock(&gspca_dev->usb_lock);
return ret;