[PATCH 5/6] netfilter: nf_tables_netdev: fix error path in module initialization

[Pablo Neira Ayuso <pablo@netfilter.org>]

Unregister the chain type and return error, otherwise this leaks the
subscription to the netdevice notifier call chain.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nf_tables_netdev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/netfilter/nf_tables_netdev.c b/net/netfilter/nf_tables_netdev.c
index b6605e0..5eefe4a 100644
--- a/net/netfilter/nf_tables_netdev.c
+++ b/net/netfilter/nf_tables_netdev.c
@@ -224,12 +224,12 @@ static int __init nf_tables_netdev_init(void)
 
 	nft_register_chain_type(&nft_filter_chain_netdev);
 	ret = register_pernet_subsys(&nf_tables_netdev_net_ops);
-	if (ret < 0)
+	if (ret < 0) {
 		nft_unregister_chain_type(&nft_filter_chain_netdev);
-
+		return ret;
+	}
 	register_netdevice_notifier(&nf_tables_netdev_notifier);
-
-	return ret;
+	return 0;
 }
 
 static void __exit nf_tables_netdev_exit(void)
-- 
2.1.4