[gtk+] inspector: avoid a warning on destroy

[Matthias Clasen <matthiasc src gnome org>]

commit 372e551a6604b46e3da87731ae8bda1f44331848
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu May 22 18:31:11 2014 -0400

    inspector: avoid a warning on destroy
    
    We are only hiding the window now, so a memory management
    error has crept into the destroy path.

 gtk/inspector/prop-list.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/gtk/inspector/prop-list.c b/gtk/inspector/prop-list.c
index 3ad8bef..7eb0375 100644
--- a/gtk/inspector/prop-list.c
+++ b/gtk/inspector/prop-list.c
@@ -311,7 +311,8 @@ cleanup_object (GtkInspectorPropList *pl)
   pl->priv->notify_handler_id = 0;
 
   g_hash_table_remove_all (pl->priv->prop_iters);
-  gtk_list_store_clear (pl->priv->model);
+  if (pl->priv->model)
+    gtk_list_store_clear (pl->priv->model);
 }
 
 gboolean