static void xhci_xfer_report(XHCITransfer *xfer)
{
    uint32_t edtla = 0;
    unsigned int left;
    bool reported = 0;
    bool shortpkt = 0;
    XHCIEvent event = {ER_TRANSFER, CC_SUCCESS};
    XHCIState *xhci = xfer->epctx->xhci;
    int i;

    left = xfer->packet.actual_length;

    for (i = 0; i < xfer->trb_count; i++) {
        XHCITRB *trb = &xfer->trbs[i];
        unsigned int chunk = 0;

        switch (TRB_TYPE(*trb)) {
        case TR_SETUP:
            chunk = trb->status & 0x1ffff;
            if (chunk > 8) {
                chunk = 8;
            }
            break;
        case TR_DATA:
        case TR_NORMAL:
        case TR_ISOCH:
            chunk = trb->status & 0x1ffff;
            if (chunk > left) {
                chunk = left;
                if (xfer->status == CC_SUCCESS) {
                    shortpkt = 1;
                }
            }
            left -= chunk;
            edtla += chunk;
            break;
        case TR_STATUS:
            reported = 0;
            shortpkt = 0;
            break;
        }

        if (!reported && ((trb->control & TRB_TR_IOC) ||
                          (shortpkt && (trb->control & TRB_TR_ISP)) ||
                          (xfer->status != CC_SUCCESS && left == 0))) {
            event.slotid = xfer->epctx->slotid;
            event.epid = xfer->epctx->epid;
            event.length = (trb->status & 0x1ffff) - chunk;
            event.flags = 0;
            event.ptr = trb->addr;
            if (xfer->status == CC_SUCCESS) {
                event.ccode = shortpkt ? CC_SHORT_PACKET : CC_SUCCESS;
            } else {
                event.ccode = xfer->status;
            }
            if (TRB_TYPE(*trb) == TR_EVDATA) {
                event.ptr = trb->parameter;
                event.flags |= TRB_EV_ED;
                event.length = edtla & 0xffffff;
                DPRINTF("xhci_xfer_data: EDTLA=%d\n", event.length);
                edtla = 0;
            }
            xhci_event(xhci, &event, TRB_INTR(*trb));
            reported = 1;
            if (xfer->status != CC_SUCCESS) {
                return;
            }
        }

        switch (TRB_TYPE(*trb)) {
        case TR_SETUP:
            reported = 0;
            shortpkt = 0;
            break;
        }

    }
}

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