@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid\r
EFI_HANDLE.\r
@retval EFI_INVALID_PARAMETER Language is NULL.\r
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid\r
EFI_HANDLE.\r
@retval EFI_INVALID_PARAMETER Language is NULL.\r