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: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx> Acked-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> Acked-by: Hans Verkuil <hans.verkuil@xxxxxxxxx> --- drivers/media/v4l2-core/v4l2-async.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c index cbd919d4edd27e17..c16200c88417b151 100644 --- a/drivers/media/v4l2-core/v4l2-async.c +++ b/drivers/media/v4l2-core/v4l2-async.c @@ -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; -- 2.13.1
