util/qemu-sockets: fix keep_alive handling in inet_connect_saddr

In "if (saddr->keep_alive) {" we may already be on error path, with
invalid sock < 0. Fix it by returning error earlier.

Reported-by: Coverity (CID 1405300)
Fixes: aec21d3175
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20190910075943.12977-1-vsementsov@virtuozzo.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2019-09-10 10:59:43 +03:00 committed by Eric Blake
parent 506902c6fa
commit da5e116918

View file

@ -461,12 +461,13 @@ int inet_connect_saddr(InetSocketAddress *saddr, Error **errp)
}
}
freeaddrinfo(res);
if (sock < 0) {
error_propagate(errp, local_err);
return sock;
}
freeaddrinfo(res);
if (saddr->keep_alive) {
int val = 1;
int ret = qemu_setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE,