From c25d8e3aea900f8ae2abd2907a5b8a2e89e7ee9e Mon Sep 17 00:00:00 2001
From: Benjamin Otte <otte@redhat.com>
Date: Thu, 28 Mar 2013 22:52:30 +0100
Subject: [PATCH] cssvalue: Handle named colors not resolving

If a named color references a nonexistant named color, we didn't catch
that error and ended up crashing on a NULL-dereference.
This crashed Boxes, because its CSS referenced values from the theme
that didn't exist in any theme.
---
 gtk/gtkcsscolorvalue.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gtk/gtkcsscolorvalue.c b/gtk/gtkcsscolorvalue.c
index 9ff0a05210..64933bde58 100644
--- a/gtk/gtkcsscolorvalue.c
+++ b/gtk/gtkcsscolorvalue.c
@@ -166,6 +166,8 @@ _gtk_css_color_value_resolve (GtkCssValue             *color,
 	  return NULL;
 
         value = _gtk_css_color_value_resolve (named, provider, current, current_deps, dependencies);
+	if (value == NULL)
+	  return NULL;
       }
 
       break;
-- 
2.30.2