diff options
| -rw-r--r-- | hw/usb/core.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/hw/usb/core.c b/hw/usb/core.c index a4048fe3e0..9a14a53852 100644 --- a/hw/usb/core.c +++ b/hw/usb/core.c @@ -484,12 +484,17 @@ void usb_packet_check_state(USBPacket *p, USBPacketState expected) void usb_packet_set_state(USBPacket *p, USBPacketState state) { - USBDevice *dev = p->ep->dev; - USBBus *bus = usb_bus_from_device(dev); - - trace_usb_packet_state_change(bus->busnr, dev->port->path, p->ep->nr, p, - usb_packet_state_name(p->state), - usb_packet_state_name(state)); + if (p->ep) { + USBDevice *dev = p->ep->dev; + USBBus *bus = usb_bus_from_device(dev); + trace_usb_packet_state_change(bus->busnr, dev->port->path, p->ep->nr, p, + usb_packet_state_name(p->state), + usb_packet_state_name(state)); + } else { + trace_usb_packet_state_change(-1, "", -1, p, + usb_packet_state_name(p->state), + usb_packet_state_name(state)); + } p->state = state; } |