Comment 2 for bug 1027097

StacktraceTop:
 cd_device_register_object (device=device@entry=0x8ebd170, connection=0x8eb7030, info=0x8eaa6d0, error=0xbff14604) at cd-device.c:1474
 cd_main_device_register_on_bus (device=0x8ebd170, error=<optimized out>) at cd-main.c:399
 cd_main_daemon_method_call (connection_=0x8eb7030, sender=0xb5c03a20 ":1.109", object_path=0xb5c04598 "/org/freedesktop/ColorManager", interface_name=0xb5c045c0 "org.freedesktop.ColorManager", method_name=0xb5c03a50 "CreateDevice", parameters=0x8ec6080, invocation=0xb5c02cc0, user_data=0x0) at cd-main.c:1032
 handle_subtree_introspect (message=0xb7608299, es=0x8ec6080, connection=0xb74325f0) at /build/buildd/glib2.0-2.33.6/./gio/gdbusconnection.c:6039
 process_subtree_vtable_message_in_idle_cb (_data=0x8e80a10) at /build/buildd/glib2.0-2.33.6/./gio/gdbusconnection.c:6288