[ros-diffs] [sginsberg] 35633: - Remove LIST_FOR_EACH and LIST_FOR_EACH_SAFE from the kernel - Fix a bug in KeStartProfile (a missing negation) which caused us to either free buffer when we shouldn't, or leak it
sginsberg at svn.reactos.org
sginsberg at svn.reactos.org
Mon Aug 25 20:21:19 CEST 2008
Author: sginsberg
Date: Mon Aug 25 13:21:19 2008
New Revision: 35633
URL: http://svn.reactos.org/svn/reactos?rev=35633&view=rev
Log:
- Remove LIST_FOR_EACH and LIST_FOR_EACH_SAFE from the kernel
- Fix a bug in KeStartProfile (a missing negation) which caused us to either free buffer when we shouldn't, or leak it
Modified:
trunk/reactos/ntoskrnl/io/iomgr/drvrlist.c
trunk/reactos/ntoskrnl/io/pnpmgr/pnproot.c
trunk/reactos/ntoskrnl/ke/profobj.c
Modified: trunk/reactos/ntoskrnl/io/iomgr/drvrlist.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/iomgr/drvrlist.c?rev=35633&r1=35632&r2=35633&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/io/iomgr/drvrlist.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/io/iomgr/drvrlist.c [iso-8859-1] Mon Aug 25 13:21:19 2008
@@ -350,14 +350,22 @@
NTSTATUS INIT_FUNCTION
IoDestroyDriverList(VOID)
{
- PSERVICE_GROUP CurrentGroup, tmp1;
- PSERVICE CurrentService, tmp2;
+ PSERVICE_GROUP CurrentGroup;
+ PSERVICE CurrentService;
+ PLIST_ENTRY NextEntry, TempEntry;
DPRINT("IoDestroyDriverList() called\n");
/* Destroy the Group List */
- LIST_FOR_EACH_SAFE(CurrentGroup, tmp1, &GroupListHead, SERVICE_GROUP, GroupListEntry)
- {
+ for (NextEntry = GroupListHead.Flink, TempEntry = NextEntry->Flink;
+ NextEntry != &GroupListHead;
+ NextEntry = TempEntry, TempEntry = NextEntry->Flink)
+ {
+ /* Get the entry */
+ CurrentGroup = CONTAINING_RECORD(NextEntry,
+ SERVICE_GROUP,
+ GroupListEntry);
+
/* Remove it from the list */
RemoveEntryList(&CurrentGroup->GroupListEntry);
@@ -369,8 +377,15 @@
}
/* Destroy the Service List */
- LIST_FOR_EACH_SAFE(CurrentService, tmp2, &ServiceListHead, SERVICE, ServiceListEntry)
- {
+ for (NextEntry = ServiceListHead.Flink, TempEntry = NextEntry->Flink;
+ NextEntry != &ServiceListHead;
+ NextEntry = TempEntry, TempEntry = NextEntry->Flink)
+ {
+ /* Get the entry */
+ CurrentService = CONTAINING_RECORD(NextEntry,
+ SERVICE,
+ ServiceListEntry);
+
/* Remove it from the list */
RemoveEntryList(&CurrentService->ServiceListEntry);
@@ -448,21 +463,35 @@
PSERVICE CurrentService;
NTSTATUS Status;
ULONG i;
+ PLIST_ENTRY NextGroupEntry, NextServiceEntry;
DPRINT("IopInitializeSystemDrivers()\n");
- /* Loop the list */
- LIST_FOR_EACH(CurrentGroup, &GroupListHead, SERVICE_GROUP, GroupListEntry)
- {
+ /* Start looping */
+ for (NextGroupEntry = GroupListHead.Flink;
+ NextGroupEntry != &GroupListHead;
+ NextGroupEntry = NextGroupEntry->Flink)
+ {
+ /* Get the entry */
+ CurrentGroup = CONTAINING_RECORD(NextGroupEntry,
+ SERVICE_GROUP,
+ GroupListEntry);
DPRINT("Group: %wZ\n", &CurrentGroup->GroupName);
/* Load all drivers with a valid tag */
for (i = 0; i < CurrentGroup->TagCount; i++)
{
- /* Loop the list */
- LIST_FOR_EACH(CurrentService, &ServiceListHead, SERVICE, ServiceListEntry)
+ /* Start looping */
+ for (NextServiceEntry = ServiceListHead.Flink;
+ NextServiceEntry != &ServiceListHead;
+ NextServiceEntry = NextServiceEntry->Flink)
{
+ /* Get the entry */
+ CurrentService = CONTAINING_RECORD(NextServiceEntry,
+ SERVICE,
+ ServiceListEntry);
+
if ((!RtlCompareUnicodeString(&CurrentGroup->GroupName,
&CurrentService->ServiceGroup,
TRUE)) &&
@@ -477,8 +506,15 @@
}
/* Load all drivers without a tag or with an invalid tag */
- LIST_FOR_EACH(CurrentService, &ServiceListHead, SERVICE, ServiceListEntry)
+ for (NextServiceEntry = ServiceListHead.Flink;
+ NextServiceEntry != &ServiceListHead;
+ NextServiceEntry = NextServiceEntry->Flink)
{
+ /* Get the entry */
+ CurrentService = CONTAINING_RECORD(NextServiceEntry,
+ SERVICE,
+ ServiceListEntry);
+
if ((!RtlCompareUnicodeString(&CurrentGroup->GroupName,
&CurrentService->ServiceGroup,
TRUE)) &&
Modified: trunk/reactos/ntoskrnl/io/pnpmgr/pnproot.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/pnpmgr/pnproot.c?rev=35633&r1=35632&r2=35633&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/io/pnpmgr/pnproot.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/io/pnpmgr/pnproot.c [iso-8859-1] Mon Aug 25 13:21:19 2008
@@ -99,14 +99,20 @@
{
PPNPROOT_DEVICE Device;
UNICODE_STRING DeviceIdU, InstanceIdU;
+ PLIST_ENTRY NextEntry;
/* Initialize the strings to compare */
RtlInitUnicodeString(&DeviceIdU, DeviceId);
RtlInitUnicodeString(&InstanceIdU, InstanceId);
/* Start looping */
- LIST_FOR_EACH(Device, &DeviceExtension->DeviceListHead, PNPROOT_DEVICE, ListEntry)
- {
+ for (NextEntry = DeviceExtension->DeviceListHead.Flink;
+ NextEntry != &DeviceExtension->DeviceListHead;
+ NextEntry = NextEntry->Flink)
+ {
+ /* Get the entry */
+ Device = CONTAINING_RECORD(NextEntry, PNPROOT_DEVICE, ListEntry);
+
/* See if the strings match */
if (RtlEqualUnicodeString(&DeviceIdU, &Device->DeviceID, TRUE) &&
RtlEqualUnicodeString(&InstanceIdU, &Device->InstanceID, TRUE))
@@ -521,6 +527,7 @@
PPNPROOT_DEVICE Device = NULL;
ULONG Size;
NTSTATUS Status;
+ PLIST_ENTRY NextEntry;
DPRINT("PnpRootQueryDeviceRelations(FDO %p, Irp %p)\n", DeviceObject, Irp);
@@ -556,8 +563,15 @@
}
KeAcquireGuardedMutex(&DeviceExtension->DeviceListLock);
- LIST_FOR_EACH(Device, &DeviceExtension->DeviceListHead, PNPROOT_DEVICE, ListEntry)
- {
+
+ /* Start looping */
+ for (NextEntry = DeviceExtension->DeviceListHead.Flink;
+ NextEntry != &DeviceExtension->DeviceListHead;
+ NextEntry = NextEntry->Flink)
+ {
+ /* Get the entry */
+ Device = CONTAINING_RECORD(NextEntry, PNPROOT_DEVICE, ListEntry);
+
if (!Device->Pdo)
{
/* Create a physical device object for the
Modified: trunk/reactos/ntoskrnl/ke/profobj.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/profobj.c?rev=35633&r1=35632&r2=35633&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/ke/profobj.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ke/profobj.c [iso-8859-1] Mon Aug 25 13:21:19 2008
@@ -54,8 +54,9 @@
KIRQL OldIrql;
PKPROFILE_SOURCE_OBJECT SourceBuffer;
PKPROFILE_SOURCE_OBJECT CurrentSource;
- BOOLEAN FreeBuffer = TRUE;
+ BOOLEAN FreeBuffer = TRUE, SourceFound = FALSE;;
PKPROCESS ProfileProcess;
+ PLIST_ENTRY NextEntry;
/* Allocate a buffer first, before we raise IRQL */
SourceBuffer = ExAllocatePoolWithTag(NonPagedPool,
@@ -89,18 +90,27 @@
InsertTailList(&KiProfileListHead, &Profile->ProfileListEntry);
}
- /* Check if this type of profile (source) is already running */
- LIST_FOR_EACH(CurrentSource, &KiProfileSourceListHead, KPROFILE_SOURCE_OBJECT, ListEntry)
- {
+ /* Start looping */
+ for (NextEntry = KiProfileSourceListHead.Flink;
+ NextEntry != &KiProfileSourceListHead;
+ NextEntry = NextEntry->Flink)
+ {
+ /* Get the entry */
+ CurrentSource = CONTAINING_RECORD(NextEntry,
+ KPROFILE_SOURCE_OBJECT,
+ ListEntry);
+
/* Check if it's the same as the one being requested now */
if (CurrentSource->Source == Profile->Source)
{
+ /* It is, break out */
+ SourceFound = TRUE;
break;
}
}
/* See if the loop found something */
- if (!CurrentSource)
+ if (!SourceFound)
{
/* Nothing found, use our allocated buffer */
CurrentSource = SourceBuffer;
@@ -122,7 +132,7 @@
//HalStartProfileInterrupt(Profile->Source);
/* Free the pool */
- if (!FreeBuffer) ExFreePool(SourceBuffer);
+ if (FreeBuffer) ExFreePool(SourceBuffer);
}
BOOLEAN
@@ -131,6 +141,8 @@
{
KIRQL OldIrql;
PKPROFILE_SOURCE_OBJECT CurrentSource = NULL;
+ PLIST_ENTRY NextEntry;
+ BOOLEAN SourceFound = FALSE;
/* Raise to PROFILE_LEVEL and acquire spinlock */
KeRaiseIrql(PROFILE_LEVEL, &OldIrql);
@@ -143,12 +155,23 @@
RemoveEntryList(&Profile->ProfileListEntry);
Profile->Started = FALSE;
- /* Find the Source Object */
- LIST_FOR_EACH(CurrentSource, &KiProfileSourceListHead, KPROFILE_SOURCE_OBJECT, ListEntry)
- {
+ /* Start looping */
+ for (NextEntry = KiProfileSourceListHead.Flink;
+ NextEntry != &KiProfileSourceListHead;
+ NextEntry = NextEntry->Flink)
+ {
+ /* Get the entry */
+ CurrentSource = CONTAINING_RECORD(NextEntry,
+ KPROFILE_SOURCE_OBJECT,
+ ListEntry);
+
+ /* Check if this is the Source Object */
if (CurrentSource->Source == Profile->Source)
{
- /* Remove it */
+ /* Remember we found one */
+ SourceFound = TRUE;
+
+ /* Remove it and break out */
RemoveEntryList(&CurrentSource->ListEntry);
break;
}
@@ -164,7 +187,7 @@
//HalStopProfileInterrupt(Profile->Source);
/* Free the Source Object */
- if (CurrentSource) ExFreePool(CurrentSource);
+ if (SourceFound) ExFreePool(CurrentSource);
/* FIXME */
return FALSE;
@@ -231,10 +254,16 @@
{
PULONG BucketValue;
PKPROFILE Profile;
+ PLIST_ENTRY NextEntry;
/* Loop the List */
- LIST_FOR_EACH(Profile, ListHead, KPROFILE, ProfileListEntry)
- {
+ for (NextEntry = ListHead->Flink;
+ NextEntry != ListHead;
+ NextEntry = NextEntry->Flink)
+ {
+ /* Get the entry */
+ Profile = CONTAINING_RECORD(NextEntry, KPROFILE, ProfileListEntry);
+
/* Check if the source is good, and if it's within the range */
#ifdef _M_IX86
if ((Profile->Source != Source) ||
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