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usb-core: Allow the first packet of a pipelined ep to complete immediately

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This can happen with usb-redir live-migration when the packet gets re-queued
after the migration and the original queuing from the migration source side
has already finished.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Hans de Goede 2012-09-03 12:48:49 +02:00 committed by Gerd Hoffmann
parent c13a9e6136
commit 9c1f67654a
1 changed files with 1 additions and 1 deletions
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2
hw/usb/core.c
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@ -398,7 +398,7 @@ int usb_handle_packet(USBDevice *dev, USBPacket *p)
* When pipelining is enabled usb-devices must always return async, * When pipelining is enabled usb-devices must always return async,
* otherwise packets can complete out of order! * otherwise packets can complete out of order!
*/ */
assert(!p->ep->pipeline); assert(!p->ep->pipeline || QTAILQ_EMPTY(&p->ep->queue));
if (ret != USB_RET_NAK) { if (ret != USB_RET_NAK) {
p->result = ret; p->result = ret;
usb_packet_set_state(p, USB_PACKET_COMPLETE); usb_packet_set_state(p, USB_PACKET_COMPLETE);