From 69555bb27b2e62d2d0f48db6d40a7bd694c732ed Mon Sep 17 00:00:00 2001 From: liuyacan Date: Thu, 21 Apr 2022 17:40:27 +0800 Subject: net/smc: sync err code when tcp connection was refused [ Upstream commit 4e2e65e2e56c6ceb4ea1719360080c0af083229e ] In the current implementation, when TCP initiates a connection to an unavailable [ip,port], ECONNREFUSED will be stored in the TCP socket, but SMC will not. However, some apps (like curl) use getsockopt(,,SO_ERROR,,) to get the error information, which makes them miss the error message and behave strangely. Fixes: 50717a37db03 ("net/smc: nonblocking connect rework") Signed-off-by: liuyacan Reviewed-by: Tony Lu Acked-by: Karsten Graul Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/smc/af_smc.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net') diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index 5221092cc66d..a5a8cca46bd5 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -816,6 +816,8 @@ static void smc_connect_work(struct work_struct *work) smc->sk.sk_state = SMC_CLOSED; if (rc == -EPIPE || rc == -EAGAIN) smc->sk.sk_err = EPIPE; + else if (rc == -ECONNREFUSED) + smc->sk.sk_err = ECONNREFUSED; else if (signal_pending(current)) smc->sk.sk_err = -sock_intr_errno(timeo); sock_put(&smc->sk); /* passive closing */ -- cgit v1.2.3