[totem] main: Don't crash if the plugins weren't loaded

[Bastien Nocera <hadess src gnome org>]

commit 9342606a43239cda9420bc1c0090988006f50404
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Feb 9 01:55:08 2011 +0000

    main: Don't crash if the plugins weren't loaded
    
    If we exit before the plugins engine was setup, please don't crash.

 src/totem-object.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/totem-object.c b/src/totem-object.c
index 2a8108c..922a1cb 100644
--- a/src/totem-object.c
+++ b/src/totem-object.c
@@ -955,7 +955,8 @@ totem_object_action_exit (TotemObject *totem)
 	char *page_id;
 
 	/* Shut down the plugins first, allowing them to display modal dialogues (etc.) without threat of being killed from another thread */
-	totem_plugins_engine_shut_down (totem->engine);
+	if (totem != NULL && totem->engine != NULL)
+		totem_plugins_engine_shut_down (totem->engine);
 
 	/* Exit forcefully if we can't do the shutdown in 10 seconds */
 	g_thread_create ((GThreadFunc) totem_action_wait_force_exit,