[rygel] core: Set db to null on failure

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit f0e633a990c2be9fa6601573b2412ebf51b2c00a
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Tue Sep 15 14:59:16 2009 +0300

    core: Set db to null on failure

 src/rygel/rygel-media-db.vala |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/rygel/rygel-media-db.vala b/src/rygel/rygel-media-db.vala
index 96e09fc..4309753 100644
--- a/src/rygel/rygel-media-db.vala
+++ b/src/rygel/rygel-media-db.vala
@@ -258,6 +258,7 @@ public class Rygel.MediaDB : Object {
                                 break;
                             default:
                                 warning ("Cannot upgrade");
+                                db = null;
                                 break;
                         }
                     } else {