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-rw-r--r--net/unix/af_unix.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index efb706e1d1c0..ac011b97097d 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1914,8 +1914,10 @@ static int unix_dgram_recvmsg(struct socket *sock, struct msghdr *msg,
goto out_unlock;
}
- wake_up_interruptible_sync_poll(&u->peer_wait,
- POLLOUT | POLLWRNORM | POLLWRBAND);
+ if (wq_has_sleeper(&u->peer_wait))
+ wake_up_interruptible_sync_poll(&u->peer_wait,
+ POLLOUT | POLLWRNORM |
+ POLLWRBAND);
if (msg->msg_name)
unix_copy_addr(msg, skb->sk);