LmHostIrpCancel(
  IN  PDEVICE_OBJECT DeviceContext,
  IN  PIRP pIrp
  );

Routine Description:

    This routine handles the cancelling a Query to LmHost, so that the client's
    irp can be returned to the client.  This cancellation is instigated
    by the client (i.e. RDR).

Arguments:


Return Value:

    The final status from the operation.