diff --git a/[refs] b/[refs]
index 3a4ddf4f4446..f4443f7c0075 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f48273860edfca2306236d0f0de609aab3f773d4
+refs/heads/master: 6f3d09291b4982991680b61763b2541e53e2a95f
diff --git a/trunk/net/core/sock.c b/trunk/net/core/sock.c
index 09cb3a74de7f..2654c147c004 100644
--- a/trunk/net/core/sock.c
+++ b/trunk/net/core/sock.c
@@ -1621,7 +1621,7 @@ static void sock_def_readable(struct sock *sk, int len)
 {
 	read_lock(&sk->sk_callback_lock);
 	if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
-		wake_up_interruptible(sk->sk_sleep);
+		wake_up_interruptible_sync(sk->sk_sleep);
 	sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN);
 	read_unlock(&sk->sk_callback_lock);
 }
@@ -1635,7 +1635,7 @@ static void sock_def_write_space(struct sock *sk)
 	 */
 	if ((atomic_read(&sk->sk_wmem_alloc) << 1) <= sk->sk_sndbuf) {
 		if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
-			wake_up_interruptible(sk->sk_sleep);
+			wake_up_interruptible_sync(sk->sk_sleep);
 
 		/* Should agree with poll, otherwise some programs break */
 		if (sock_writeable(sk))