diff options
Diffstat (limited to 'MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c')
| -rw-r--r-- | MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c b/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c index c78305e780..e2c86b07b4 100644 --- a/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c +++ b/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c @@ -1102,6 +1102,10 @@ USBKeyboardUnregisterKeyNotify ( if (NotificationHandle == NULL) {
return EFI_INVALID_PARAMETER;
}
+
+ if (((KEYBOARD_CONSOLE_IN_EX_NOTIFY *) NotificationHandle)->Signature != USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE) {
+ return EFI_INVALID_PARAMETER;
+ }
UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);
|