From: Hans Wippel <hwippel@xxxxxxxxxxxxxxxxxx> The SMC receive function currently lacks a timeout check under the condition that no data were received and no data are available. This patch adds such a check. Signed-off-by: Hans Wippel <hwippel@xxxxxxxxxxxxxxxxxx> Signed-off-by: Ursula Braun <ubraun@xxxxxxxxxxxxxxxxxx> --- net/smc/smc_rx.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/smc/smc_rx.c b/net/smc/smc_rx.c index b17a333e9bb0..3e631ae4b6b6 100644 --- a/net/smc/smc_rx.c +++ b/net/smc/smc_rx.c @@ -148,6 +148,8 @@ int smc_rx_recvmsg(struct smc_sock *smc, struct msghdr *msg, size_t len, read_done = sock_intr_errno(timeo); break; } + if (!timeo) + return -EAGAIN; } if (!atomic_read(&conn->bytes_to_rcv)) { -- 2.13.5 -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html