89 lines
1.9 KiB
C
89 lines
1.9 KiB
C
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/*++
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Copyright (C) Microsoft Corporation, 1998 - 1999
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Module Name:
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parport.sys
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File Name:
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cleanup.c
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Abstract:
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This file contains the dispatch routine for handling IRP_MJ_CLEANUP.
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Exports:
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- PptDispatchCleanup() - The dispatch routine for cleanup.
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--*/
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#include "pch.h"
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NTSTATUS
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PptFdoCleanup(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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)
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/*++dvdf3
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Routine Description:
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This is the dispatch routine for handling IRP_MJ_CLEANUP IRPs.
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This routine cancels all of the IRPs currently queued on
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for the specified device.
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Arguments:
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DeviceObject - Supplies the device object.
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Irp - Supplies the cleanup IRP.
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Return Value:
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STATUS_SUCCESS - Success.
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--*/
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{
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PFDO_EXTENSION fdx = DeviceObject->DeviceExtension;
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PIRP nextIrp;
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KIRQL cancelIrql;
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DD((PCE)fdx,DDT,"PptFdoCleanup\n");
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//
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// Verify that our device has not been SUPRISE_REMOVED. If we
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// have been SUPRISE_REMOVED then we have already cleaned up
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// as part of the handling of the surprise removal.
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//
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if( fdx->PnpState & PPT_DEVICE_SURPRISE_REMOVED ) {
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goto targetExit;
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}
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IoAcquireCancelSpinLock( &cancelIrql );
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while( !IsListEmpty( &fdx->WorkQueue ) ) {
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nextIrp = CONTAINING_RECORD(fdx->WorkQueue.Blink, IRP, Tail.Overlay.ListEntry);
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nextIrp->Cancel = TRUE;
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nextIrp->CancelIrql = cancelIrql;
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nextIrp->CancelRoutine = NULL;
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PptCancelRoutine(DeviceObject, nextIrp);
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// need to reacquire because PptCancelRoutine() releases the SpinLock
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IoAcquireCancelSpinLock(&cancelIrql);
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}
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IoReleaseCancelSpinLock( cancelIrql );
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targetExit:
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return P4CompleteRequest( Irp, STATUS_SUCCESS, 0 );
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}
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