X-Git-Url: https://bbs.cooldavid.org/git/?a=blobdiff_plain;f=net%2Fipv4%2Fipmr.c;h=99508d66a64227fd532718486fa9eed924963e26;hb=d0490cfdf440fded2c292cfb8bb9272fc9ef6943;hp=630a56df7b47ee80c9c77dcbb62048dc73ed9fc5;hpb=b8a623bf836ccfab09a5a6daf62116f455082e6e;p=net-next-2.6.git

diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 630a56df7b4..99508d66a64 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -483,8 +483,10 @@ static int vif_add(struct net *net, struct vifctl *vifc, int mrtsock)
 		return -EINVAL;
 	}
 
-	if ((in_dev = __in_dev_get_rtnl(dev)) == NULL)
+	if ((in_dev = __in_dev_get_rtnl(dev)) == NULL) {
+		dev_put(dev);
 		return -EADDRNOTAVAIL;
+	}
 	IPV4_DEVCONF(in_dev->cnf, MC_FORWARDING)++;
 	ip_rt_multicast_event(in_dev);