linux-kernel - [PATCH] nbd: kill unused ret in recv

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Date:   Thu, 13 Jul 2017 19:20:44 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Josef Bacik <jbacik@...com>
CC:     <linux-kernel@...r.kernel.org>, <linux-block@...r.kernel.org>,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: [PATCH] nbd: kill unused ret in recv_work

No need to return value in queue work, kill ret variable.

Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
 drivers/block/nbd.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index dea7d85..87a0a29 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -626,7 +626,6 @@ static void recv_work(struct work_struct *work)
 	struct nbd_device *nbd = args->nbd;
 	struct nbd_config *config = nbd->config;
 	struct nbd_cmd *cmd;
-	int ret = 0;
 
 	while (1) {
 		cmd = nbd_read_stat(nbd, args->index);
@@ -636,7 +635,6 @@ static void recv_work(struct work_struct *work)
 			mutex_lock(&nsock->tx_lock);
 			nbd_mark_nsock_dead(nbd, nsock, 1);
 			mutex_unlock(&nsock->tx_lock);
-			ret = PTR_ERR(cmd);
 			break;
 		}
 
-- 
1.8.3.1