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[media] v4l2-event: v4l2_event_queue: do nothing if vdev == NULL

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If the vdev pointer == NULL, then just return.

This makes it easier for subdev drivers to use this function without having to
check if the sd->devnode pointer is NULL or not.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Hans Verkuil 2015-06-23 06:20:23 -03:00 committed by Mauro Carvalho Chehab
parent 675a9a9fda
commit fb8dfda980
1 changed files with 3 additions and 0 deletions
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3
drivers/media/v4l2-core/v4l2-event.c
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@ -172,6 +172,9 @@ void v4l2_event_queue(struct video_device *vdev, const struct v4l2_event *ev)
unsigned long flags;
struct timespec timestamp;
if (vdev == NULL)
return;
ktime_get_ts(&timestamp);
spin_lock_irqsave(&vdev->fh_lock, flags);