mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2025-12-26 12:21:01 +01:00
If someone tries to _urb_unlink while _urb_queue_head is running, he'll see _urb->queue == NULL and fail to do any locking. Prevent that from happening by strategically placed barriers. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>