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Commit fbf1e94f authored by Niklas Söderlund's avatar Niklas Söderlund Committed by Mauro Carvalho Chehab
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[media] v4l: async: check for v4l2_dev in v4l2_async_notifier_register() 



Add a check for v4l2_dev to v4l2_async_notifier_register() as to fail as
early as possible since this will fail later in v4l2_async_test_notify().

Signed-off-by: default avatarNiklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 31165ad4

drivers/media/v4l2-core/v4l2-async.c

+2 −1
Original line number Diff line number Diff line
@@ -148,7 +148,8 @@ int v4l2_async_notifier_register(struct v4l2_device *v4l2_dev, 
	struct v4l2_async_subdev *asd;

	int i;



	if (!notifier->num_subdevs || notifier->num_subdevs > V4L2_MAX_SUBDEVS)

	if (!v4l2_dev || !notifier->num_subdevs ||

	    notifier->num_subdevs > V4L2_MAX_SUBDEVS)

		return -EINVAL;



	notifier->v4l2_dev = v4l2_dev;