[gdm] Don't exit when local display fails to start

[William Jon McCann <mccann src gnome org>]

commit 64483254bde06c4bec9ea3bd0a01419dba520e36
Author: William Jon McCann <jmccann redhat com>
Date:   Wed Jun 16 16:32:20 2010 -0400

    Don't exit when local display fails to start
    
    It doesn't really make a lot of sense to exit when the
    local display can't be started.  Exiting won't leave the system
    in any better shape that it would be with gdm running in the
    background.  On the other hand it makes it so that XDMCP and other
    services can't run headless.  Ideally we'd have some kind of
    smart detection of when local hardware is available and when it
    changes.  And smarter fallback code for when the hardware is
    available but the display can't be started due to some error.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=342397

 daemon/gdm-local-display-factory.c |   13 +++++++++----
 1 files changed, 9 insertions(+), 4 deletions(-)
---
diff --git a/daemon/gdm-local-display-factory.c b/daemon/gdm-local-display-factory.c
index 8dc1e9d..73ab499 100644
--- a/daemon/gdm-local-display-factory.c
+++ b/daemon/gdm-local-display-factory.c
@@ -311,10 +311,11 @@ on_static_display_status_changed (GdmDisplay             *display,
                 if (factory->priv->num_failures > MAX_DISPLAY_FAILURES) {
                         /* oh shit */
                         g_warning ("GdmLocalDisplayFactory: maximum number of X display failures reached: check X server log for errors");
-                        exit (1);
+                        /* FIXME: should monitor hardware changes to
+                           try again when seats change */
+                } else {
+                        create_display (factory);
                 }
-
-                create_display (factory);
                 break;
         case GDM_DISPLAY_UNMANAGED:
                 break;
@@ -371,13 +372,17 @@ gdm_local_display_factory_start (GdmDisplayFactory *base_factory)
 {
         gboolean                ret;
         GdmLocalDisplayFactory *factory = GDM_LOCAL_DISPLAY_FACTORY (base_factory);
+        GdmDisplay             *display;
 
         g_return_val_if_fail (GDM_IS_LOCAL_DISPLAY_FACTORY (factory), FALSE);
 
         ret = TRUE;
 
         /* FIXME: use seat configuration */
-        create_display (factory);
+        display = create_display (factory);
+        if (display == NULL) {
+                ret = FALSE;
+        }
 
         return ret;
 }