Commit eb9d4673 authored by Gerd Hoffmann's avatar Gerd Hoffmann
Browse files

usb: queue can have async packets 



This can happen today in case the ->complete() callback queues up the
next packet.  Also we'll support pipelining soon, which allows to have
multiple packets per queue in flight (aka ASYNC) state.

Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
parent 7c308b7e

hw/usb.c

+3 −0
Original line number Diff line number Diff line
@@ -356,6 +356,9 @@ void usb_packet_complete(USBDevice *dev, USBPacket *p) 


    while (!QTAILQ_EMPTY(&ep->queue)) {

        p = QTAILQ_FIRST(&ep->queue);

        if (p->state == USB_PACKET_ASYNC) {

            break;

        }

        assert(p->state == USB_PACKET_QUEUED);

        ret = usb_process_one(p);

        if (ret == USB_RET_ASYNC) {