[rygel] media-export: Fix crash on file removal

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 1c90a7cae994f6cf7a1d5a8d1faf93f8aa99aa11
Author: Jens Georg <mail jensge org>
Date:   Wed Apr 13 19:49:32 2011 +0300

    media-export: Fix crash on file removal

 .../media-export/rygel-media-export-harvester.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/plugins/media-export/rygel-media-export-harvester.vala b/src/plugins/media-export/rygel-media-export-harvester.vala
index 0f92646..3c8861a 100644
--- a/src/plugins/media-export/rygel-media-export-harvester.vala
+++ b/src/plugins/media-export/rygel-media-export-harvester.vala
@@ -177,7 +177,7 @@ internal class Rygel.MediaExport.Harvester : GLib.Object {
                         // change
                         var id = MediaCache.get_id (file);
                         var object = cache.get_object (id);
-                        var parent = object.parent;
+                        var parent = null as MediaContainer;
 
                         while (object != null) {
                             parent = object.parent;