The call to v4l2_async_cleanup() will set sd->asd to NULL so passing it to notifier->unbind() have no effect and leaves the notifier confused. Call the unbind() callback prior to cleaning up the subdevice to avoid this.
Signed-off-by: Niklas Söderlund <[email protected]> --- drivers/media/v4l2-core/v4l2-async.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c index 851f128eba2219ad..0acf288d7227ba97 100644 --- a/drivers/media/v4l2-core/v4l2-async.c +++ b/drivers/media/v4l2-core/v4l2-async.c @@ -226,14 +226,14 @@ void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier) d = get_device(sd->dev); + if (notifier->unbind) + notifier->unbind(notifier, sd, sd->asd); + v4l2_async_cleanup(sd); /* If we handled USB devices, we'd have to lock the parent too */ device_release_driver(d); - if (notifier->unbind) - notifier->unbind(notifier, sd, sd->asd); - /* * Store device at the device cache, in order to call * put_device() on the final step -- 2.13.1
