linux-kernel - [PATCH 03/10] nbd: restructure sock

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Date:	Mon, 17 Aug 2015 08:20:02 +0200
From:	Markus Pargmann <mpa@...gutronix.de>
To:	Jens Axboe <axboe@...nel.dk>
Cc:	linux-kernel@...r.kernel.org, nbd-general@...ts.sourceforge.net,
	kernel@...gutronix.de, Markus Pargmann <mpa@...gutronix.de>
Subject: [PATCH 03/10] 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@...gutronix.de>
Acked-by: Pavel Machek <pavel@....cz>
---
 drivers/block/nbd.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index ff59093c5dc1..2c3661e4d364 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)
-- 
2.4.6

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