[gnome-shell] unref theme_node in st_widget_dispose

[Maxim Ermilov <mermilov src gnome org>]

commit 690deeb502d49e85abc1135b961f661be10bbb62
Author: Maxim Ermilov <zaspire rambler ru>
Date:   Wed Mar 17 18:40:42 2010 +0300

    unref theme_node in st_widget_dispose
    
    https://bugzilla.gnome.org/show_bug.cgi?id=612318

 src/st/st-widget.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/st/st-widget.c b/src/st/st-widget.c
index 08768f7..e09c3a1 100644
--- a/src/st/st-widget.c
+++ b/src/st/st-widget.c
@@ -242,6 +242,12 @@ st_widget_dispose (GObject *gobject)
       priv->background_image_shadow = NULL;
     }
 
+  if (priv->theme_node)
+    {
+      g_object_unref (priv->theme_node);
+      priv->theme_node = NULL;
+    }
+
   if (priv->tooltip)
     {
       ClutterContainer *parent;