QM_DRIVER_REMOVING
if (test_bit(QM_DRIVER_REMOVING, &qm->misc_ctl)) {
if (test_bit(QM_DRIVER_REMOVING, &qm->misc_ctl))
set_bit(QM_DRIVER_REMOVING, &qm->misc_ctl);
!test_bit(QM_DRIVER_REMOVING, &qm->misc_ctl) &&