[PATCH 6.0 0528/1073] af_unix: call proto_unregister() in the error path in af_unix_init()

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From: Yang Yingliang <yangyingliang@xxxxxxxxxx>

[ Upstream commit 73e341e0281a35274629e9be27eae2f9b1b492bf ]

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@xxxxxxxxxx>
Reviewed-by: Simon Horman <simon.horman@xxxxxxxxxxxx>
Reviewed-by: Kuniyuki Iwashima <kuniyu@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 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 d686804119c9..02fad8e8f4cd 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -3724,6 +3724,7 @@ 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;
 	}
 
-- 
2.35.1






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