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 a5802a8b652f27983f41052df6047c1b7185a015..cec074be8c4378b56a01889165d55cc282808208 100644 (file)
--- 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)) {