[gdm] Fix gdm_slave_get_timed_login_details

[Ray Strode <halfline src gnome org>]

commit 9fd603874caa65791cd74aa88daf61f9f196d5c3
Author: Ray Strode <rstrode redhat com>
Date:   Fri Sep 25 15:07:54 2009 -0400

    Fix gdm_slave_get_timed_login_details
    
    Before it would fail if a NULL username was passed in,
    breaking autologin on the multi-stack branch.

 daemon/gdm-slave.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/daemon/gdm-slave.c b/daemon/gdm-slave.c
index 7bc98c5..94a32ee 100644
--- a/daemon/gdm-slave.c
+++ b/daemon/gdm-slave.c
@@ -881,6 +881,16 @@ gdm_slave_get_timed_login_details (GdmSlave   *slave,
         if (usernamep != NULL) {
                 *usernamep = gdm_slave_parse_enriched_login (slave,
                         username, slave->priv->display_name);
+        } else {
+                g_free (username);
+
+                if (enabledp != NULL) {
+                        *enabledp = enabled;
+                }
+                if (delayp != NULL) {
+                        *delayp = delay;
+                }
+                return TRUE;
         }
         g_free (username);