NTSTATUS __stdcall IofCallDriverSpecifyReturn(DEVICE_OBJECT *DeviceObject, IRP *Irp, PVOID ReturnAddress){
if( !IopDispatchCallDriver )
return IopfCallDriver(DeviceObject, Irp);
if( IopDispatchCallDriver == 3 )
return IopPerfCallDriver(DeviceObject, Irp, ReturnAddress);
return IovCallDriver(DeviceObject, Irp, ReturnAddress);
}