From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 6 May 2013 02:15:13 +0000 (+0000)
Subject: netpoll: inverted down_trylock() test
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=a3dbbc2bab8d9a6e55fc0af3906d1dddbc0c531e;p=openwrt%2Fstaging%2Fblogic.git

netpoll: inverted down_trylock() test

The return value is reversed from mutex_trylock().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index a5802a8b652f..cec074be8c43 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -206,7 +206,7 @@ static void netpoll_poll_dev(struct net_device *dev)
 	 * the dev_open/close paths use this to block netpoll activity
 	 * while changing device state
 	 */
-	if (!down_trylock(&ni->dev_lock))
+	if (down_trylock(&ni->dev_lock))
 		return;
 
 	if (!netif_running(dev)) {