1 files changed, 1 insertions, 1 deletions

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 56f0aec40ed6..75be5a28815d 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -939,7 +939,7 @@ static inline int tcp_prequeue(struct sock *sk, struct sk_buff *skb)
 
                 tp->ucopy.memory = 0;
         } else if (skb_queue_len(&tp->ucopy.prequeue) == 1) {
-                wake_up_interruptible_poll(sk->sk_sleep,
+                wake_up_interruptible_sync_poll(sk->sk_sleep,
                                            POLLIN | POLLRDNORM | POLLRDBAND);
                 if (!inet_csk_ack_scheduled(sk))
                         inet_csk_reset_xmit_timer(sk, ICSK_TIME_DACK,