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Message-Id: <20210422134151.28905-1-xiangxia.m.yue@gmail.com>
Date:   Thu, 22 Apr 2021 21:41:51 +0800
From:   xiangxia.m.yue@...il.com
To:     netdev@...r.kernel.org
Cc:     Tonghao Zhang <xiangxia.m.yue@...il.com>,
        Miaohe Lin <linmiaohe@...wei.com>
Subject: [PATCH] net: sock: remove the unnecessary check in proto_register

From: Tonghao Zhang <xiangxia.m.yue@...il.com>

tw_prot_cleanup will check the twsk_prot.

Fixes: 0f5907af3913 ("net: Fix potential memory leak in proto_register()")
Cc: Miaohe Lin <linmiaohe@...wei.com>
Signed-off-by: Tonghao Zhang <xiangxia.m.yue@...il.com>
---
 net/core/sock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/sock.c b/net/core/sock.c
index 5ec90f99e102..c761c4a0b66b 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -3531,7 +3531,7 @@ int proto_register(struct proto *prot, int alloc_slab)
 	return ret;
 
 out_free_timewait_sock_slab:
-	if (alloc_slab && prot->twsk_prot)
+	if (alloc_slab)
 		tw_prot_cleanup(prot->twsk_prot);
 out_free_request_sock_slab:
 	if (alloc_slab) {
-- 
2.27.0

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