[gnome-utils] [baobab] Fixes #601147.

[Eduardo Lima Mitev <elima src gnome org>]

commit d790556377d0f7bf9425da7bb3162f8a1b8ce14e
Author: Eduardo Lima Mitev <elima igalia com>
Date:   Tue Nov 10 09:41:01 2009 +0100

    [baobab] Fixes #601147.
    
    Adds a check to avoid traversing the tree model if it's empty.
    
    Contributed by Alexander Korolkov.

 baobab/src/baobab-chart.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/baobab/src/baobab-chart.c b/baobab/src/baobab-chart.c
index c24d6bb..6ae8a27 100644
--- a/baobab/src/baobab-chart.c
+++ b/baobab/src/baobab-chart.c
@@ -520,7 +520,12 @@ baobab_chart_get_items (GtkWidget *chart, GtkTreePath *root)
   baobab_chart_free_items (chart);
 
   /* Get the tree iteration corresponding to root */
-  gtk_tree_model_get_iter (priv->model, &initial_iter, root);
+  if (!gtk_tree_model_get_iter (priv->model, &initial_iter, root))
+    {
+      priv->model_changed = FALSE;
+      return;
+    }
+
 
 
   model_root_path = gtk_tree_path_new_first ();