[git:media_stage/master] media: v4l: async: Properly re-initialise notifier entry in unregister

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Subject: media: v4l: async: Properly re-initialise notifier entry in unregister Author: Sakari Ailus sakari.ailus@linux.intel.com Date: Fri Mar 8 15:06:13 2024 +0200

The notifier_entry of a notifier is not re-initialised after unregistering the notifier. This leads to dangling pointers being left there so use list_del_init() to return the notifier_entry an empty list.

Fixes: b8ec754ae4c5 ("media: v4l: async: Set v4l2_device and subdev in async notifier init") Cc: stable@vger.kernel.org # for 6.6 and later Signed-off-by: Sakari Ailus sakari.ailus@linux.intel.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl

drivers/media/v4l2-core/v4l2-async.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

---

diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c index 2ff35d5d60f2..4bb073587817 100644 --- a/drivers/media/v4l2-core/v4l2-async.c +++ b/drivers/media/v4l2-core/v4l2-async.c @@ -635,7 +635,7 @@ __v4l2_async_nf_unregister(struct v4l2_async_notifier *notifier)

v4l2_async_nf_unbind_all_subdevs(notifier);

- list_del(&notifier->notifier_entry); + list_del_init(&notifier->notifier_entry); }

void v4l2_async_nf_unregister(struct v4l2_async_notifier *notifier)