xhci_dbc_free_requests
xhci_dbc_free_requests(&port->read_pool);
xhci_dbc_free_requests(&port->write_pool);
xhci_dbc_free_requests(&port->read_pool);
xhci_dbc_free_requests(&port->read_queue);
xhci_dbc_free_requests(&port->write_pool);