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-rw-r--r--hw/usb/dev-smartcard-reader.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/usb/dev-smartcard-reader.c b/hw/usb/dev-smartcard-reader.c
index 190fcd62d4..de955b709f 100644
--- a/hw/usb/dev-smartcard-reader.c
+++ b/hw/usb/dev-smartcard-reader.c
@@ -1002,6 +1002,8 @@ static void ccid_handle_data(USBDevice *dev, USBPacket *p)
                         "handle_data: int_in: notify_slot_change %X, "
                         "requested len %zd\n",
                         s->bmSlotICCState, p->iov.size);
+            } else {
+                p->status = USB_RET_NAK;
             }
             break;
         default: