usb-ehci: Fix an assert whenever isoc transfers are used

hcd-ehci.c is missing an usb_packet_init() call for the ipacket UsbPacket it uses for isoc transfers, triggering an assert (taking the entire vm down) in usb_packet_setup as soon as any isoc transfers are done by a high speed USB device. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

Author: jwrdegoede

hw/usb/hcd-ehci.c

@@ -2581,6 +2581,7 @@ static int usb_ehci_initfn(PCIDevice *dev)
  s->async_bh = qemu_bh_new(ehci_async_bh, s);
  QTAILQ_INIT(&s->aqueues);
  QTAILQ_INIT(&s->pqueues);
+ usb_packet_init(&s->ipacket);
 
  qemu_register_reset(ehci_reset, s);