[media] uvcvideo: Fix a "ignoring return value of ‘__clear_user’" war…

…ning Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
git-mirror · May 7, 2012 · 57fb4a4 · 57fb4a4
1 parent 3e36614
commit 57fb4a4
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/drivers/media/video/uvc/uvc_v4l2.c b/drivers/media/video/uvc/uvc_v4l2.c
@@ -1097,7 +1097,8 @@ static int uvc_v4l2_put_xu_mapping(const struct uvc_xu_control_mapping *kp,
 	    __put_user(kp->menu_count, &up->menu_count))
 		return -EFAULT;
 
-	__clear_user(up->reserved, sizeof(up->reserved));
+	if (__clear_user(up->reserved, sizeof(up->reserved)))
+		return -EFAULT;
 
 	if (kp->menu_count == 0)
 		return 0;