Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

Conflicts:
	drivers/net/pcmcia/pcnet_cs.c
	net/caif/caif_socket.c

1 files changed, 13 insertions, 4 deletions

diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index abcba5358b63..2eca2dd0000f 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -819,6 +819,7 @@ static int caif_connect(struct socket *sock, struct sockaddr *uaddr,
 	long timeo;
 	int err;
 	int ifindex, headroom, tailroom;
+	unsigned int mtu;
 	struct net_device *dev;
 
 	lock_sock(sk);
@@ -888,14 +889,22 @@ static int caif_connect(struct socket *sock, struct sockaddr *uaddr,
 		cf_sk->sk.sk_state = CAIF_DISCONNECTED;
 		goto out;
 	}
-	dev = dev_get_by_index(sock_net(sk), ifindex);
+
+	err = -ENODEV;
+	rcu_read_lock();
+	dev = dev_get_by_index_rcu(sock_net(sk), ifindex);
+	if (!dev) {
+		rcu_read_unlock();
+		goto out;
+	}
 	cf_sk->headroom = LL_RESERVED_SPACE_EXTRA(dev, headroom);
+	mtu = dev->mtu;
+	rcu_read_unlock();
+
 	cf_sk->tailroom = tailroom;
-	cf_sk->maxframe = dev->mtu - (headroom + tailroom);
-	dev_put(dev);
+	cf_sk->maxframe = mtu - (headroom + tailroom);
 	if (cf_sk->maxframe < 1) {
 		pr_warn("CAIF Interface MTU too small (%d)\n", dev->mtu);
-		err = -ENODEV;
 		goto out;
 	}