netdev - [patch -next] netpoll: inverted down

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Message-ID: <20130506121513.GA13930@elgon.mountain>
Date:	Mon, 6 May 2013 15:15:13 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	"David S. Miller" <davem@...emloft.net>,
	Neil Horman <nhorman@...driver.com>
Cc:	Cong Wang <amwang@...hat.com>, Eric Dumazet <edumazet@...gle.com>,
	Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch -next] netpoll: inverted down_trylock() test

The return value is reversed from mutex_trylock().

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index a5802a8..cec074b 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)) {
--
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