netdev - [PATCH net] net/smc: Fix cleanup when register ULP fails

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Message-Id: <20220225065656.60828-1-tonylu@linux.alibaba.com>
Date:   Fri, 25 Feb 2022 14:56:57 +0800
From:   Tony Lu <tonylu@...ux.alibaba.com>
To:     kgraul@...ux.ibm.com, kuba@...nel.org, davem@...emloft.net
Cc:     netdev@...r.kernel.org, linux-s390@...r.kernel.org
Subject: [PATCH net] net/smc: Fix cleanup when register ULP fails

This patch calls smc_ib_unregister_client() when tcp_register_ulp()
fails, and make sure to clean it up.

Fixes: d7cd421da9da ("net/smc: Introduce TCP ULP support")
Signed-off-by: Tony Lu <tonylu@...ux.alibaba.com>
---
 net/smc/af_smc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 30acc31b2c45..d1a1343623f6 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -3270,12 +3270,14 @@ static int __init smc_init(void)
 	rc = tcp_register_ulp(&smc_ulp_ops);
 	if (rc) {
 		pr_err("%s: tcp_ulp_register fails with %d\n", __func__, rc);
-		goto out_sock;
+		goto out_ib;
 	}
 
 	static_branch_enable(&tcp_have_smc);
 	return 0;
 
+out_ib:
+	smc_ib_unregister_client();
 out_sock:
 	sock_unregister(PF_SMC);
 out_proto6:
-- 
2.32.0.3.g01195cf9f