static void xhci_intr_raise(XHCIState *xhci, int v)
{
    PCIDevice *pci_dev = PCI_DEVICE(xhci);

    xhci->intr[v].erdp_low |= ERDP_EHB;
    xhci->intr[v].iman |= IMAN_IP;
    xhci->usbsts |= USBSTS_EINT;

    if (!(xhci->intr[v].iman & IMAN_IE)) {
        return;
    }

    if (!(xhci->usbcmd & USBCMD_INTE)) {
        return;
    }

    if (msix_enabled(pci_dev)) {
        trace_usb_xhci_irq_msix(v);
        msix_notify(pci_dev, v);
        return;
    }

    if (msi_enabled(pci_dev)) {
        trace_usb_xhci_irq_msi(v);
        msi_notify(pci_dev, v);
        return;
    }

    if (v == 0) {
        trace_usb_xhci_irq_intx(1);
        pci_irq_assert(pci_dev);
    }
}

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.