[PATCH] net/smc: Fix error path in smc_init

[YueHaibing]

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 <yuehaib...@huawei.com>
---
 net/smc/af_smc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 6f869ef..7d3207f 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -2019,7 +2019,7 @@ static int __init smc_init(void)
 
        rc = smc_pnet_init();
        if (rc)
-               return rc;
+               goto out_pernet_subsys;
 
        rc = smc_llc_init();
        if (rc) {
@@ -2070,6 +2070,9 @@ static int __init smc_init(void)
        proto_unregister(&smc_proto);
 out_pnet:
        smc_pnet_exit();
+out_pernet_subsys:
+       unregister_pernet_subsys(&smc_net_ops);
+
        return rc;
 }
 
-- 
1.8.3.1