From fd165dfe195375f66d5d97b97a2d3ab22c0bb633 Mon Sep 17 00:00:00 2001
From: Arx Cruz <arxcruz@gnome.org>
Date: Mon, 30 Jan 2012 15:56:23 -0200
Subject: [PATCH] Bug #668935 - the channel was being freed twice.

---
 src/tree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tree.c b/src/tree.c
index 10d8946..ad4a6d1 100644
--- a/src/tree.c
+++ b/src/tree.c
@@ -645,7 +645,7 @@ zenity_tree_dialog_response (GtkWidget *widget, int response, gpointer data)
       zen_data->exit_code = zenity_util_return_exit_code (ZENITY_ESC);
       break;
   }
-  if (channel != NULL)
+  if (channel->is_readable == TRUE)
     g_io_channel_shutdown (channel, TRUE, NULL);
 
   gtk_main_quit ();