- Fixed a bug in IoCsqRemoveIrp and IoCsqRemoveNextIrp.

reactos/drivers/lib/csq

diff -u -r1.3 -r1.4
--- csq.c	20 Jun 2004 03:29:29 -0000	1.3
+++ csq.c	4 Jul 2004 08:30:28 -0000	1.4
@@ -23,6 +23,8 @@

  * all happen at DISPATCH_LEVEL all of the time, so thread switching on a single
  * processor can create races too.
  */

+/* $Id: csq.c,v 1.4 2004/07/04 08:30:28 hbirr Exp $ */
+

 #define __NTDRIVER__
 #include <ddk/ntddk.h>
 #include <ddk/csq.h>

@@ -321,7 +323,7 @@

 			/* This IRP is valid and is ours.  Dequeue it, fix it up, and return */
 			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)
 				Context->Irp = NULL;

@@ -371,7 +373,7 @@

 			Csq->CsqRemoveIrp(Csq, Irp);
 
 			/* 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)
 				Context->Irp = NULL;