[PATCH] nbd: fix incorrect unlock of nbd->sock_lock in sock_shutdown

[John W. Linville]

Commit 0eadf37afc250 ("nbd: allow block mq to deal with timeouts")
changed normal usage of nbd->sock_lock to use spin_lock/spin_unlock
rather than the *_irq variants, but it missed this unlock in an
error path.

Found by Coverity, CID 1373871.

Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
Cc: Josef Bacik <jbacik@xxxxxx>
Cc: Jens Axboe <axboe@xxxxxx>
Cc: Markus Pargmann <mpa@xxxxxxxxxxxxxx>
Fixes: 0eadf37afc250 ("nbd: allow block mq to deal with timeouts")
---
By inspection (i.e. compile tested only)...

 drivers/block/nbd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index ba405b55329f..19a16b2dbb91 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -164,7 +164,7 @@ static void sock_shutdown(struct nbd_device *nbd)
 	spin_lock(&nbd->sock_lock);
 
 	if (!nbd->sock) {
-		spin_unlock_irq(&nbd->sock_lock);
+		spin_unlock(&nbd->sock_lock);
 		return;
 	}
 
-- 
2.7.4