[glib/wip/hadess/test-fixes: 16/16] tests: Fix error path not setting an error

[Philip Withnall <pwithnall src gnome org>]

commit e537716540ead22d30216a9367180482896acd18
Author: Bastien Nocera <hadess hadess net>
Date:   Mon Dec 2 17:38:25 2019 +0100

    tests: Fix error path not setting an error
    
    This failure path should have set the GError but did not.

 gio/tests/socket.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/gio/tests/socket.c b/gio/tests/socket.c
index aea71dd45..e095d0195 100644
--- a/gio/tests/socket.c
+++ b/gio/tests/socket.c
@@ -140,7 +140,11 @@ create_server_full (GSocketFamily   family,
     {
       g_socket_set_option (data->server, IPPROTO_IPV6, IPV6_V6ONLY, FALSE, NULL);
       if (!g_socket_speaks_ipv4 (data->server))
-        goto error;
+        {
+          g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
+                               "IPv6-only server cannot speak IPv4");
+          goto error;
+        }
     }
 #endif