[glib/wip/menus: 29/33] GMenuModel: properly clear variables after unref

[Ryan Lortie <ryanl src gnome org>]

commit 49c413b8ad43c5c4a331c39778d09434fe3abc44
Author: Ryan Lortie <desrt desrt ca>
Date:   Thu Aug 25 01:31:19 2011 -0400

    GMenuModel: properly clear variables after unref

 gio/gmenumodel.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/gio/gmenumodel.c b/gio/gmenumodel.c
index e389e8d..cac54e3 100644
--- a/gio/gmenumodel.c
+++ b/gio/gmenumodel.c
@@ -767,7 +767,10 @@ g_menu_attribute_iter_get_next (GMenuAttributeIter  *iter,
                                 GVariant           **value)
 {
   if (iter->priv->value)
-    g_variant_unref (iter->priv->value);
+    {
+      g_variant_unref (iter->priv->value);
+      iter->priv->value = NULL;
+    }
 
   iter->priv->valid = G_MENU_ATTRIBUTE_ITER_GET_CLASS (iter)
     ->get_next (iter, &iter->priv->name, &iter->priv->value);
@@ -912,7 +915,10 @@ g_menu_link_iter_get_next (GMenuLinkIter  *iter,
                            GMenuModel    **value)
 {
   if (iter->priv->value)
-    g_object_unref (iter->priv->value);
+    {
+      g_object_unref (iter->priv->value);
+      iter->priv->value = NULL;
+    }
 
   iter->priv->valid = G_MENU_LINK_ITER_GET_CLASS (iter)
     ->get_next (iter, &iter->priv->name, &iter->priv->value);