netdev - [PATCH net] af_unix: call proto_unregister() in the error path in af_unix

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Message-ID: <20221208150158.2396166-1-yangyingliang@huawei.com>
Date:   Thu, 8 Dec 2022 23:01:58 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <netdev@...r.kernel.org>
CC:     <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <jiang.wang@...edance.com>,
        <john.fastabend@...il.com>, <jakub@...udflare.com>,
        <andrii@...nel.org>
Subject: [PATCH net] af_unix: call proto_unregister() in the error path in af_unix_init()

If register unix_stream_proto returns error, unix_dgram_proto needs
be unregistered.

Fixes: 94531cfcbe79 ("af_unix: Add unix_stream_proto for sockmap")
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 net/unix/af_unix.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index b3545fc68097..ede2b2a140a4 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -3738,6 +3738,7 @@ static int __init af_unix_init(void)
 	rc = proto_register(&unix_stream_proto, 1);
 	if (rc != 0) {
 		pr_crit("%s: Cannot create unix_sock SLAB cache!\n", __func__);
+		proto_unregister(&unix_dgram_proto);
 		goto out;
 	}
 
-- 
2.25.1