updated and tested by Konstantin Karasyov

http://bugzilla.kernel.org/show_bug.cgi?id=5000Signed-off-by: Patrick Mochel <patrick.mochel@intel.com>
Signed-off-by: Konstantin Karasyov <konstantin.karasyov @intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>