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[PATCH 4.6 77/96] RDS: fix rds_tcp_init() error path

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  [PATCH 4.6 77/96] RDS: fix rds_tcp_init() error path Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-08-08 21:30 +0200

#1458117 — [PATCH 4.6 77/96] RDS: fix rds_tcp_init() error path

4.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Vegard Nossum <vegard.nossum@oracle.com>

commit 3dad5424adfb346c871847d467f97dcdca64ea97 upstream.

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: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 net/rds/tcp.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/net/rds/tcp.c
+++ b/net/rds/tcp.c
@@ -544,7 +544,7 @@ 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)
@@ -556,8 +556,9 @@ 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;

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