LDC_FLAG_REGISTERED_IRQS
if (lp->flags & LDC_FLAG_REGISTERED_IRQS) {
lp->flags &= ~LDC_FLAG_REGISTERED_IRQS;
lp->flags |= LDC_FLAG_REGISTERED_IRQS;
lp->flags &= ~LDC_FLAG_REGISTERED_IRQS;
lp->flags &= ~(LDC_FLAG_REGISTERED_IRQS |