ipv6: release idev when ip6_neigh_lookup failed in icmp6_dst_alloc

release idev when ip6_neigh_lookup failed in icmp6_dst_alloc

Signed-off-by: RongQing.Li <roy.qing.li@gmail.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 07361dfa8085..8c2e3ab58f2a 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1091,6 +1091,7 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
         else {
                 neigh = ip6_neigh_lookup(&rt->dst, &fl6->daddr);
                 if (IS_ERR(neigh)) {
+                        in6_dev_put(idev);
                         dst_free(&rt->dst);
                         return ERR_CAST(neigh);
                 }