[glib] Fail in a clean way if schema name is missing

[Matthias Clasen <matthiasc src gnome org>]

commit 4a8d9b68e38c8b2d09e426eb009ca6fadff5af86
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jan 27 20:29:22 2011 -0500

    Fail in a clean way if schema name is missing
    
    https://bugzilla.gnome.org/show_bug.cgi?id=640192

 gio/gsettingsschema.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gio/gsettingsschema.c b/gio/gsettingsschema.c
index 6d028ad..fdc1779 100644
--- a/gio/gsettingsschema.c
+++ b/gio/gsettingsschema.c
@@ -267,6 +267,8 @@ g_settings_schema_new (const gchar *name)
   GvdbTable *table = NULL;
   GSList *source;
 
+  g_return_val_if_fail (name != NULL, NULL);
+
   initialise_schema_sources ();
 
   for (source = schema_sources; source; source = source->next)