}\r
\r
Done:\r
- if (mUsb3Instance->Ready && (mUsb3Instance->PciIoEvent == 0)) {\r
+ if ((mUsb3Instance != NULL) && mUsb3Instance->Ready && (mUsb3Instance->PciIoEvent == 0)) {\r
Status = Usb3NamedEventListen (\r
&gEfiPciIoProtocolGuid,\r
TPL_NOTIFY,\r