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Commit 01b38606 authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont Committed by David S. Miller
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Phonet: do not set POLLOUT in case of send buffer overflow 



Signed-off-by: default avatarRémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 02ac3268

net/phonet/socket.c

+3 −1
Original line number Diff line number Diff line
@@ -281,7 +281,9 @@ static unsigned int pn_socket_poll(struct file *file, struct socket *sock, 
	if (!mask && sk->sk_state == TCP_CLOSE_WAIT)

		return POLLHUP;



	if (sk->sk_state == TCP_ESTABLISHED && atomic_read(&pn->tx_credits))

	if (sk->sk_state == TCP_ESTABLISHED &&

		atomic_read(&sk->sk_wmem_alloc) < sk->sk_sndbuf &&

		atomic_read(&pn->tx_credits))

		mask |= POLLOUT | POLLWRNORM | POLLWRBAND;



	return mask;