From: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Date: Mon, 15 Dec 2008 07:15:21 +0000 (-0800)
Subject: ipv6/mcast: join error paths using goto
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=448eb71f40120a8fd11ebd58153c271c63e6f862;p=openwrt%2Fstaging%2Fblogic.git

ipv6/mcast: join error paths using goto

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 0f3896032830..a51fb33e6864 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -303,20 +303,23 @@ static struct inet6_dev *ip6_mc_find_dev(struct net *net,
 		dev = dev_get_by_index(net, ifindex);
 
 	if (!dev)
-		return NULL;
+		goto nodev;
 	idev = in6_dev_get(dev);
-	if (!idev) {
-		dev_put(dev);
-		return NULL;
-	}
+	if (!idev)
+		goto release;
 	read_lock_bh(&idev->lock);
-	if (idev->dead) {
-		read_unlock_bh(&idev->lock);
-		in6_dev_put(idev);
-		dev_put(dev);
-		return NULL;
-	}
+	if (idev->dead)
+		goto unlock_release;
+
 	return idev;
+
+unlock_release:
+	read_unlock_bh(&idev->lock);
+	in6_dev_put(idev);
+release:
+	dev_put(dev);
+nodev:
+	return NULL;
 }
 
 void ipv6_sock_mc_close(struct sock *sk)