netdev - [PATCH] tuntap: remove unused variable in __tun

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Date:	Wed, 13 Mar 2013 21:03:58 +0800
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	davem@...emloft.net, jasowang@...hat.com, mst@...hat.com,
	edumazet@...gle.com, nhorman@...driver.com
Cc:	yongjun_wei@...ndmicro.com.cn, netdev@...r.kernel.org
Subject: [PATCH] tuntap: remove unused variable in __tun_detach()

From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

The variable dev is initialized but never used
otherwise, so remove the unused variable.

Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
---
 drivers/net/tun.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index b7c457a..95837c1 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -409,14 +409,12 @@ static void __tun_detach(struct tun_file *tfile, bool clean)
 {
 	struct tun_file *ntfile;
 	struct tun_struct *tun;
-	struct net_device *dev;
 
 	tun = rtnl_dereference(tfile->tun);
 
 	if (tun && !tfile->detached) {
 		u16 index = tfile->queue_index;
 		BUG_ON(index >= tun->numqueues);
-		dev = tun->dev;
 
 		rcu_assign_pointer(tun->tfiles[index],
 				   tun->tfiles[tun->numqueues - 1]);

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