[PATCH] POLLRDHUP/EPOLLRDHUP handling for half-closed devices notifications

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / sctp / socket.c

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 0ea947eb681320561d3e3d61ac91001aa1043926..b6e4b89539b3178216037c53350f5591dde8a1b6 100644 (file)
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4894,6 +4894,8 @@ unsigned int sctp_poll(struct file *file, struct socket *sock, poll_table *wait)
        /* Is there any exceptional events?  */
        if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
                mask |= POLLERR;
+       if (sk->sk_shutdown & RCV_SHUTDOWN)
+               mask |= POLLRDHUP;
        if (sk->sk_shutdown == SHUTDOWN_MASK)
                mask |= POLLHUP;