netfilter: bridge: refcount fix

commit f216f082b2b37c4943f1e7c393e2786648d48f6f
([NETFILTER]: bridge netfilter: deal with martians correctly)
added a refcount leak on in_dev.

Instead of using in_dev_get(), we can use __in_dev_get_rcu(),
as netfilter hooks are running under rcu_read_lock(), as pointed
by Patrick.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 4fde7425077d..907a82e9023d 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -359,7 +359,7 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb)
                                 },
                                 .proto = 0,
                         };
-                        struct in_device *in_dev = in_dev_get(dev);
+                        struct in_device *in_dev = __in_dev_get_rcu(dev);
 
                         /* If err equals -EHOSTUNREACH the error is due to a
                          * martian destination or due to the fact that