Fix the poll mask depending on the socket state. POLLOUT was missing
for example.
Signed-off-by: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx>
---
net/nfc/llcp/sock.c | 15 ++++++++++++++-
1 files changed, 14 insertions(+), 1 deletions(-)
diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c
index 99196d3..3f339b1 100644
--- a/net/nfc/llcp/sock.c
+++ b/net/nfc/llcp/sock.c
@@ -340,11 +340,24 @@ static unsigned int llcp_sock_poll(struct file *file, struct socket *sock,
mask |= POLLERR;
if (!skb_queue_empty(&sk->sk_receive_queue))
- mask |= POLLIN;
+ mask |= POLLIN | POLLRDNORM;
if (sk->sk_state == LLCP_CLOSED)
mask |= POLLHUP;
+ if (sk->sk_shutdown & RCV_SHUTDOWN)
+ mask |= POLLRDHUP | POLLIN | POLLRDNORM;
+
+ if (sk->sk_shutdown == SHUTDOWN_MASK)
+ mask |= POLLHUP;
+
+ if (sock_writeable(sk))
+ mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
+ else
+ set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
+
+ pr_debug("mask 0x%x\n", mask);
+
return mask;
}
--
1.7.9.1
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