tipc: fix sleeping in tipc accept routine

stable inclusion
from stable-5.10.56
commit a41282e82a1d13ad2cca0f07879d7042780d8e78
bugzilla: 176004 https://gitee.com/openeuler/kernel/issues/I4DYZ4

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=a41282e82a1d13ad2cca0f07879d7042780d8e78

--------------------------------

[ Upstream commit d237a7f1 ]

The release_sock() is blocking function, it would change the state
after sleeping. In order to evaluate the stated condition outside
the socket lock context, switch to use wait_woken() instead.

Fixes: 6398e23c ("tipc: standardize accept routine")
Acked-by: NJon Maloy <jmaloy@redhat.com>
Signed-off-by: NHoang Le <hoang.h.le@dektech.com.au>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Acked-by: NWeilong Chen <chenweilong@huawei.com>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

net/tipc/socket.c

@@ -2650,7 +2650,7 @@ static int tipc_listen(struct socket *sock, int len)
 static int tipc_wait_for_accept(struct socket *sock, long timeo)
 {
 	struct sock *sk = sock->sk;
-	DEFINE_WAIT(wait);
+	DEFINE_WAIT_FUNC(wait, woken_wake_function);
 	int err;
 
 	/* True wake-one mechanism for incoming connections: only
@@ -2659,12 +2659,12 @@ static int tipc_wait_for_accept(struct socket *sock, long timeo)
 	 * anymore, the common case will execute the loop only once.
 	*/
 	for (;;) {
-		prepare_to_wait_exclusive(sk_sleep(sk), &wait,
-					  TASK_INTERRUPTIBLE);
 		if (timeo && skb_queue_empty(&sk->sk_receive_queue)) {
+			add_wait_queue(sk_sleep(sk), &wait);
 			release_sock(sk);
-			timeo = schedule_timeout(timeo);
+			timeo = wait_woken(&wait, TASK_INTERRUPTIBLE, timeo);
 			lock_sock(sk);
+			remove_wait_queue(sk_sleep(sk), &wait);
 		}
 		err = 0;
 		if (!skb_queue_empty(&sk->sk_receive_queue))
@@ -2676,7 +2676,6 @@ static int tipc_wait_for_accept(struct socket *sock, long timeo)
 		if (signal_pending(current))
 			break;
 	}
-	finish_wait(sk_sleep(sk), &wait);
 	return err;
 }