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Diffstat (limited to 'hw/usb/core.c')
-rw-r--r--hw/usb/core.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/usb/core.c b/hw/usb/core.c
index 2da38e7fd0..be6d936881 100644
--- a/hw/usb/core.c
+++ b/hw/usb/core.c
@@ -399,8 +399,10 @@ int usb_handle_packet(USBDevice *dev, USBPacket *p)
* otherwise packets can complete out of order!
*/
assert(!p->ep->pipeline);
- p->result = ret;
- usb_packet_set_state(p, USB_PACKET_COMPLETE);
+ if (ret != USB_RET_NAK) {
+ p->result = ret;
+ usb_packet_set_state(p, USB_PACKET_COMPLETE);
+ }
}
} else {
ret = USB_RET_ASYNC;