[dconf] don't crash if get_locked() is called on "/"

[Ryan Lortie <ryanl src gnome org>]

commit 431893838eebc24bb80eb3a2a6a1a706d9a499f1
Author: Ryan Lortie <desrt desrt ca>
Date:   Thu Sep 17 22:10:07 2009 -0400

    don't crash if get_locked() is called on "/"

 dconf/dconf-core.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/dconf/dconf-core.c b/dconf/dconf-core.c
index eadc12c..fea59a5 100644
--- a/dconf/dconf-core.c
+++ b/dconf/dconf-core.c
@@ -253,7 +253,7 @@ dconf_get_locked (const gchar *path)
   DConfMount *mount;
 
   mount = dconf_demux_path (&path, TRUE, NULL);
-  if (mount->n_dbs)
+  if (mount && mount->n_dbs)
     locked = dconf_reader_get_locked (mount->dbs[0]->reader, path);
 
   return locked;
@@ -284,7 +284,7 @@ dconf_get_writable (const gchar *path)
   DConfMount *mount;
 
   mount = dconf_demux_path (&path, TRUE, NULL);
-   if (mount)
+  if (mount)
     {
       gint i;