[gnome-disk-utility] don't use g_free on a GIcon, use g_object_unref in

[David Zeuthen <davidz src gnome org>]

commit 15eda99b58d602119ba9df881595fcbb02853c2a
Author: David Zeuthen <davidz redhat com>
Date:   Wed Mar 4 11:37:56 2009 -0500

    don't use g_free on a GIcon, use g_object_unref instead
    
    This fixes a crash when attempting to change the passphrase of a LUKS
    device.
---
 src/gdu-gtk/gdu-gtk.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/gdu-gtk/gdu-gtk.c b/src/gdu-gtk/gdu-gtk.c
index d86599a..d0a41d4 100644
--- a/src/gdu-gtk/gdu-gtk.c
+++ b/src/gdu-gtk/gdu-gtk.c
@@ -1057,7 +1057,7 @@ out:
 
         g_free (window_title);
         if (window_icon != NULL)
-                g_free (window_icon);
+                g_object_unref (window_icon);
         if (device != NULL)
                 g_object_unref (device);
         return ret;