}
if (!xhci->slots[slotid-1].uport ||
- !xhci->slots[slotid-1].uport->dev) {
+ !xhci->slots[slotid-1].uport->dev ||
+ !xhci->slots[slotid-1].uport->dev->attached) {
return CC_USB_TRANSACTION_ERROR;
}
return;
}
+ /* If the device has been detached, but the guest has not noticed this
+ yet the 2 above checks will succeed, but we must NOT continue */
+ if (!xhci->slots[slotid - 1].uport ||
+ !xhci->slots[slotid - 1].uport->dev ||
+ !xhci->slots[slotid - 1].uport->dev->attached) {
+ return;
+ }
+
if (epctx->retry) {
XHCITransfer *xfer = epctx->retry;
trace_usb_xhci_slot_address(slotid, uport->path);
dev = uport->dev;
- if (!dev) {
+ if (!dev || !dev->attached) {
fprintf(stderr, "xhci: port %s not connected\n", uport->path);
return CC_USB_TRANSACTION_ERROR;
}