UM_IRQ_ALLOC
err = um_request_irq(UM_IRQ_ALLOC, fd, IRQ_READ,
err = um_request_irq(UM_IRQ_ALLOC, fd, IRQ_WRITE,
err = um_request_irq(UM_IRQ_ALLOC, uml_rtc_irq_fd, IRQ_READ,
ctx->irq = um_request_irq(UM_IRQ_ALLOC, irqfd, IRQ_READ,
vu_dev->irq = UM_IRQ_ALLOC;
rc = um_request_irq_tt(UM_IRQ_ALLOC, vu_dev->req_fd, IRQ_READ,
if (irq == UM_IRQ_ALLOC) {