[PATCH] RDS: fix rds_tcp_init() error path

[Vegard Nossum]

If register_pernet_subsys() fails, we shouldn't try to call
unregister_pernet_subsys().

Fixes: 467fa15356 ("RDS-TCP: Support multiple RDS-TCP listen endpoints, one per 
netns.")
Cc: sta...@vger.kernel.org
Cc: Sowmini Varadhan <sowmini.varad...@oracle.com>
Cc: David S. Miller <da...@davemloft.net>
Signed-off-by: Vegard Nossum <vegard.nos...@oracle.com>
---
 net/rds/tcp.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/rds/tcp.c b/net/rds/tcp.c
index 74ee126..c8a7b4c 100644
--- a/net/rds/tcp.c
+++ b/net/rds/tcp.c
@@ -616,7 +616,7 @@ static int rds_tcp_init(void)
 
        ret = rds_tcp_recv_init();
        if (ret)
-               goto out_slab;
+               goto out_pernet;
 
        ret = rds_trans_register(&rds_tcp_transport);
        if (ret)
@@ -628,8 +628,9 @@ static int rds_tcp_init(void)
 
 out_recv:
        rds_tcp_recv_exit();
-out_slab:
+out_pernet:
        unregister_pernet_subsys(&rds_tcp_net_ops);
+out_slab:
        kmem_cache_destroy(rds_tcp_conn_slab);
 out:
        return ret;
-- 
1.9.1