From: YueHaibing <yuehaibing@huawei.com>
Date: Wed, 26 Jun 2019 17:47:50 +0200
Subject: net/smc: Fix error path in smc_init
Git-commit: 8c33bf1b0a9663d1742cb19ee71da46a1d8670dd
Patch-mainline: v5.2-rc7
References: git-fixes

If register_pernet_subsys success in smc_init,
we should cleanup it in case any other error.

Fixes: 64e28b52c7a6 (net/smc: add pnet table namespace support")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 net/smc/af_smc.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -2026,7 +2026,7 @@ static int __init smc_init(void)
 
 	rc = smc_pnet_init();
 	if (rc)
-		return rc;
+		goto out_pernet_subsys;
 
 	rc = smc_llc_init();
 	if (rc) {
@@ -2077,6 +2077,9 @@ out_proto:
 	proto_unregister(&smc_proto);
 out_pnet:
 	smc_pnet_exit();
+out_pernet_subsys:
+	unregister_pernet_subsys(&smc_net_ops);
+
 	return rc;
 }