[gdk-pixbuf] GtkPixbufSimpleAnimIter: Check iter->simple_animation before unref.

[Tristan Van Berkom <tvb src gnome org>]

commit 94d6b940eb5d54b96f6fe7e8addf76ee792061b5
Author: Tristan Van Berkom <tristan van berkom gmail com>
Date:   Fri Apr 5 18:06:15 2013 +0900

    GtkPixbufSimpleAnimIter: Check iter->simple_animation before unref.
    
    This is just a nitpick, and allows the objects-finalize test in GTK+
    to pass.

 gdk-pixbuf/gdk-pixbuf-simple-anim.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/gdk-pixbuf/gdk-pixbuf-simple-anim.c b/gdk-pixbuf/gdk-pixbuf-simple-anim.c
index b52dfbd..79f5720 100644
--- a/gdk-pixbuf/gdk-pixbuf-simple-anim.c
+++ b/gdk-pixbuf/gdk-pixbuf-simple-anim.c
@@ -298,8 +298,9 @@ gdk_pixbuf_simple_anim_iter_finalize (GObject *object)
         
         iter = GDK_PIXBUF_SIMPLE_ANIM_ITER (object);
         iter_clear (iter);
-        
-        g_object_unref (iter->simple_anim);
+
+        if (iter->simple_anim)
+                g_object_unref (iter->simple_anim);
         
         G_OBJECT_CLASS (gdk_pixbuf_simple_anim_iter_parent_class)->finalize (object);
 }