memset driver to zero only after we destroy its locks
memset driver to zero only after we destroy its locks

jcnelson/syndicate,jcnelson/syndicate,iychoi/syndicate,iychoi/syndicate,jcnelson/syndicate,iychoi/syndicate,iychoi/syndicate,jcnelson/syndicate,iychoi/syndicate,jcnelson/syndicate,jcnelson/syndicate,iychoi/syndicate,iychoi/syndicate,jcnelson/syndicate,iychoi/syndicate,jcnelson/syndicate