[media] v4l2-ctrls: make manual_mode_value 8 bits and check against control range

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/media/video/v4l2-ctrls.c b/drivers/media/video/v4l2-ctrls.c
index d084cea2b3ba..1bbaed6a5930 100644
--- a/drivers/media/video/v4l2-ctrls.c
+++ b/drivers/media/video/v4l2-ctrls.c
@@ -1264,6 +1264,7 @@ void v4l2_ctrl_auto_cluster(unsigned ncontrols, struct v4l2_ctrl **controls,
 
         v4l2_ctrl_cluster(ncontrols, controls);
         WARN_ON(ncontrols <= 1);
+        WARN_ON(manual_val < master->minimum || manual_val > master->maximum);
         master->is_auto = true;
         master->manual_mode_value = manual_val;
         master->flags |= V4L2_CTRL_FLAG_UPDATE;