netdev - [PATCH net] mctp: Fix an error handling path in mctp

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Message-Id: <20221107152756.180628-1-weiyongjun@huaweicloud.com>
Date:   Mon,  7 Nov 2022 15:27:56 +0000
From:   Wei Yongjun <weiyongjun@...weicloud.com>
To:     Matt Johnston <matt@...econstruct.com.au>,
        Jeremy Kerr <jk@...econstruct.com.au>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     Wei Yongjun <weiyongjun1@...wei.com>, netdev@...r.kernel.org
Subject: [PATCH net] mctp: Fix an error handling path in mctp_init()

From: Wei Yongjun <weiyongjun1@...wei.com>

If mctp_neigh_init() return error, the routes resources should
be released in the error handling path. Otherwise some resources
leak.

Fixes: 4d8b9319282a ("mctp: Add neighbour implementation")
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>

diff --git a/net/mctp/af_mctp.c b/net/mctp/af_mctp.c
index b6b5e496fa40..fc9e728b6333 100644
--- a/net/mctp/af_mctp.c
+++ b/net/mctp/af_mctp.c
@@ -665,12 +665,14 @@ static __init int mctp_init(void)
 
 	rc = mctp_neigh_init();
 	if (rc)
-		goto err_unreg_proto;
+		goto err_unreg_routes;
 
 	mctp_device_init();
 
 	return 0;
 
+err_unreg_routes:
+	mctp_routes_exit();
 err_unreg_proto:
 	proto_unregister(&mctp_proto);
 err_unreg_sock:
-- 
2.34.1