[glib/wip/menus: 14/18] GMenuModel: fix bug in iters

[Ryan Lortie <ryanl src gnome org>]

commit af2fccf0b38f0e972088a9f9d56dfb1a851875e1
Author: Ryan Lortie <desrt desrt ca>
Date:   Thu Aug 25 00:50:02 2011 -0400

    GMenuModel: fix bug in iters

 gio/gmenumodel.c |   22 ++++++++++++++--------
 1 files changed, 14 insertions(+), 8 deletions(-)
---
diff --git a/gio/gmenumodel.c b/gio/gmenumodel.c
index 4391135..e389e8d 100644
--- a/gio/gmenumodel.c
+++ b/gio/gmenumodel.c
@@ -772,11 +772,14 @@ g_menu_attribute_iter_get_next (GMenuAttributeIter  *iter,
   iter->priv->valid = G_MENU_ATTRIBUTE_ITER_GET_CLASS (iter)
     ->get_next (iter, &iter->priv->name, &iter->priv->value);
 
-  if (name)
-    *name = iter->priv->name;
+  if (iter->priv->valid)
+    {
+      if (name)
+        *name = iter->priv->name;
 
-  if (value)
-    *value = g_variant_ref (iter->priv->value);
+      if (value)
+        *value = g_variant_ref (iter->priv->value);
+    }
 
   return iter->priv->valid;
 }
@@ -914,11 +917,14 @@ g_menu_link_iter_get_next (GMenuLinkIter  *iter,
   iter->priv->valid = G_MENU_LINK_ITER_GET_CLASS (iter)
     ->get_next (iter, &iter->priv->name, &iter->priv->value);
 
-  if (name)
-    *name = iter->priv->name;
+  if (iter->priv->valid)
+    {
+      if (name)
+        *name = iter->priv->name;
 
-  if (value)
-    *value = g_object_ref (iter->priv->value);
+      if (value)
+        *value = g_object_ref (iter->priv->value);
+    }
 
   return iter->priv->valid;
 }