NTSTATUS __stdcall VfCancelMappedTransfer(_DMA_ADAPTER *DmaAdapter, VOID *TransferContext){
__int64(__fastcall *RealDmaOperation)(_DMA_ADAPTER *, VOID *);
RealDmaOperation = (__int64(__fastcall *)(_DMA_ADAPTER *, VOID *))ViGetRealDmaOperation(
(ULONG_PTR)DmaAdapter,
0xE0ui64);
return RealDmaOperation(DmaAdapter, TransferContext);
}