Phonet: receive pipe control requests as out-of-band data

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/net/phonet/socket.c b/net/phonet/socket.c
index cea1136cbe46..a9c3d1f2e9db 100644
--- a/net/phonet/socket.c
+++ b/net/phonet/socket.c
@@ -220,7 +220,9 @@ static unsigned int pn_socket_poll(struct file *file, struct socket *sock,
 
         if (!skb_queue_empty(&sk->sk_receive_queue))
                 mask |= POLLIN | POLLRDNORM;
-        else if (sk->sk_state == TCP_CLOSE_WAIT)
+        if (!skb_queue_empty(&pn->ctrlreq_queue))
+                mask |= POLLPRI;
+        if (!mask && sk->sk_state == TCP_CLOSE_WAIT)
                 return POLLHUP;
 
         if (sk->sk_state == TCP_ESTABLISHED && pn->tx_credits)