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[NTOSKRNL]

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- Fix a reference leak which prevented driver objects passed to IoRegisterPlugPlayNotification from being able to unload after the notification was unregistered
- Fix a non-paged pool leak

svn path=/trunk/; revision=51997
This commit is contained in:
Cameron Gutman
2011-05-29 16:44:34 +00:00
parent 51945fb53c
commit 944ccbbe33
1 changed files with 8 additions and 1 deletions
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reactos/ntoskrnl/io/pnpmgr/pnpnotify.c
+8 -1
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@@ -23,6 +23,7 @@ typedef struct _PNP_NOTIFY_ENTRY
PVOID Context;
UNICODE_STRING Guid;
PFILE_OBJECT FileObject;
PDRIVER_OBJECT DriverObject;
PDRIVER_NOTIFICATION_CALLBACK_ROUTINE PnpNotificationProc;
} PNP_NOTIFY_ENTRY, *PPNP_NOTIFY_ENTRY;
@@ -319,6 +320,7 @@ IoRegisterPlugPlayNotification(IN IO_NOTIFICATION_EVENT_CATEGORY EventCategory,
Entry->PnpNotificationProc = CallbackRoutine;
Entry->EventCategory = EventCategory;
Entry->Context = Context;
Entry->DriverObject = DriverObject;
switch (EventCategory)
{
case EventCategoryDeviceInterfaceChange:
@@ -377,9 +379,14 @@ IoUnregisterPlugPlayNotification(IN PVOID NotificationEntry)
DPRINT("__FUNCTION__(NotificationEntry %p) called\n", Entry);
KeAcquireGuardedMutex(&PnpNotifyListLock);
RtlFreeUnicodeString(&Entry->Guid);
RemoveEntryList(&Entry->PnpNotifyList);
KeReleaseGuardedMutex(&PnpNotifyListLock);
RtlFreeUnicodeString(&Entry->Guid);
ObDereferenceObject(Entry->DriverObject);
ExFreePoolWithTag(Entry, TAG_PNP_NOTIFY);
return STATUS_SUCCESS;
}