nbd: restructure sock_shutdown

This patch restructures sock_shutdown to avoid having the main code path
in an if block.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>

1 files changed, 7 insertions, 6 deletions

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index bf0de3018cde..137b45f7f6c6 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -119,12 +119,13 @@ static void nbd_end_request(struct nbd_device *nbd, struct request *req)
  */
 static void sock_shutdown(struct nbd_device *nbd)
 {
-        if (nbd->sock) {
-                dev_warn(disk_to_dev(nbd->disk), "shutting down socket\n");
-                kernel_sock_shutdown(nbd->sock, SHUT_RDWR);
-                nbd->sock = NULL;
-                del_timer_sync(&nbd->timeout_timer);
-        }
+        if (!nbd->sock)
+                return;
+
+        dev_warn(disk_to_dev(nbd->disk), "shutting down socket\n");
+        kernel_sock_shutdown(nbd->sock, SHUT_RDWR);
+        nbd->sock = NULL;
+        del_timer_sync(&nbd->timeout_timer);
 }
 
 static void nbd_xmit_timeout(unsigned long arg)