Ensure all access to v4l2object->pool imply taking a lock and a hard ref on the pool Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3481>
Ensure all access to v4l2object->pool imply taking a lock and a hard ref on the pool Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3481>