NTSTATUS __stdcall HalCancelMappedTransfer(_ADAPTER_OBJECT *ChildAdapter, _DMA_TRANSFER_CONTEXT *TransferContext){
if( ChildAdapter->MasterDevice )
return -1073741811;
if( (TransferContext->V1.TransferState & 1) != 0 )
return -1073741536;
HalpDmaControllerCancelTransfer(
ChildAdapter->DmaController,
(_DMA_TRANSFER_CONTEXT *)ChildAdapter->ChannelNumber,
TransferContext);
return 0;
}