}
}
+ /* Update transfer count for everything but create operation */
+ if (!(Irp->Flags & IRP_CREATE_OPERATION))
+ {
+ if (Irp->Flags & IRP_WRITE_OPERATION)
+ {
+ /* Update write transfer count */
+ IopUpdateTransferCount(IopWriteTransfer,
+ (ULONG)Irp->IoStatus.Information);
+ }
+ else if (Irp->Flags & IRP_READ_OPERATION)
+ {
+ /* Update read transfer count */
+ IopUpdateTransferCount(IopReadTransfer,
+ (ULONG)Irp->IoStatus.Information);
+ }
+ else
+ {
+ /* Update other transfer count */
+ IopUpdateTransferCount(IopOtherTransfer,
+ (ULONG)Irp->IoStatus.Information);
+ }
+ }
+
/* Now that we've signaled the events, de-associate the IRP */
IopUnQueueIrpFromThread(Irp);
/* Free the IRP and its MDL */
IoFreeMdl(Irp->MdlAddress);
IoFreeIrp(Irp);
- Irp = NULL;
+
+ /* Fail */
+ _SEH2_YIELD(return NULL);
}
_SEH2_END;
-
- /* This is how we know if we failed during the probe */
- if (!Irp) return NULL;
}
else
{
/* Free the input buffer and IRP */
if (InputBuffer) ExFreePool(Irp->AssociatedIrp.SystemBuffer);
IoFreeIrp(Irp);
- Irp = NULL;
+
+ /* Fail */
+ _SEH2_YIELD(return NULL);
}
_SEH2_END;
-
- /* This is how we know if probing failed */
- if (!Irp) return NULL;
}
break;
PDRIVER_OBJECT DriverObject;
PIO_STACK_LOCATION StackPtr;
+ /* Make sure this is a valid IRP */
+ ASSERT(Irp->Type == IO_TYPE_IRP);
+
/* Get the Driver Object */
DriverObject = DeviceObject->DriverObject;