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- Fixed a bug in IoCsqRemoveIrp and IoCsqRemoveNextIrp.

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svn path=/trunk/; revision=9992
This commit is contained in:
Hartmut Birr 2004-07-04 08:30:28 +00:00
parent 62a8ad0e87
commit 5c7b116b28
1 changed files with 4 additions and 2 deletions
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6
reactos/drivers/lib/csq/csq.c
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@ -23,6 +23,8 @@
* all happen at DISPATCH_LEVEL all of the time, so thread switching on a single * all happen at DISPATCH_LEVEL all of the time, so thread switching on a single
* processor can create races too. * processor can create races too.
*/ */
/* $Id: csq.c,v 1.4 2004/07/04 08:30:28 hbirr Exp $ */
#define __NTDRIVER__ #define __NTDRIVER__
#include <ddk/ntddk.h> #include <ddk/ntddk.h>
#include <ddk/csq.h> #include <ddk/csq.h>
@ -321,7 +323,7 @@ PIRP NTAPI IoCsqRemoveIrp(PIO_CSQ Csq,
/* This IRP is valid and is ours. Dequeue it, fix it up, and return */ /* This IRP is valid and is ours. Dequeue it, fix it up, and return */
Csq->CsqRemoveIrp(Csq, Irp); Csq->CsqRemoveIrp(Csq, Irp);
Context = (PIO_CSQ_IRP_CONTEXT)InterlockedExchange(Irp->Tail.Overlay.DriverContext[3], 0); Context = (PIO_CSQ_IRP_CONTEXT)InterlockedExchangePointer(&Irp->Tail.Overlay.DriverContext[3], NULL);
if(Context && Context->Type == IO_TYPE_CSQ_IRP_CONTEXT) if(Context && Context->Type == IO_TYPE_CSQ_IRP_CONTEXT)
Context->Irp = NULL; Context->Irp = NULL;
@ -371,7 +373,7 @@ PIRP NTAPI IoCsqRemoveNextIrp(PIO_CSQ Csq,
Csq->CsqRemoveIrp(Csq, Irp); Csq->CsqRemoveIrp(Csq, Irp);
/* Unset the context stuff and return */ /* Unset the context stuff and return */
Context = (PIO_CSQ_IRP_CONTEXT)InterlockedExchange(Irp->Tail.Overlay.DriverContext[3], 0); Context = (PIO_CSQ_IRP_CONTEXT)InterlockedExchangePointer(&Irp->Tail.Overlay.DriverContext[3], NULL);
if(Context && Context->Type == IO_TYPE_CSQ_IRP_CONTEXT) if(Context && Context->Type == IO_TYPE_CSQ_IRP_CONTEXT)
Context->Irp = NULL; Context->Irp = NULL;