[gnome-control-center] region: Fix possible crasher with empty layout

[Bastien Nocera <hadess src gnome org>]

commit 57bba2631110359b8eb5c7eb558da6f18599a84e
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Mar 7 18:27:25 2012 +0100

    region: Fix possible crasher with empty layout

 panels/region/gnome-region-panel-system.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/panels/region/gnome-region-panel-system.c b/panels/region/gnome-region-panel-system.c
index c043712..a02ef54 100644
--- a/panels/region/gnome-region-panel-system.c
+++ b/panels/region/gnome-region-panel-system.c
@@ -162,6 +162,9 @@ xkb_settings_changed (GSettings *settings,
 
 		split = g_strsplit_set (layouts[i], " \t", 2);
 
+		if (split == NULL || split[0] == NULL)
+			continue;
+
 		layout = split[0];
 		variant = split[1];