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- Add BDA filter context to object bag, so that it gets freed automatically later

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svn path=/trunk/; revision=42588
This commit is contained in:
Johannes Anderwald 2009-08-10 11:28:25 +00:00
parent c4ba7bb1d8
commit 22769d6876
1 changed files with 48 additions and 0 deletions
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48
reactos/drivers/multimedia/bdasup/bdasup.c
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@ -106,6 +106,43 @@ BdaCreateFilterFactory(
return BdaCreateFilterFactoryEx(pKSDevice, pFilterDescriptor, pBdaFilterTemplate, NULL);
}
VOID
NTAPI
FreeFilterInstance(
IN PVOID Context)
{
PBDA_FILTER_INSTANCE_ENTRY InstanceEntry = NULL;
PLIST_ENTRY Entry;
KIRQL OldLevel;
/* acquire list lock */
KeAcquireSpinLock(&g_Settings.FilterFactoryInstanceListLock, &OldLevel);
/* point to first entry */
Entry = g_Settings.FilterFactoryInstanceList.Flink;
while(Entry != &g_Settings.FilterFactoryInstanceList)
{
/* get instance entry from list entry offset */
InstanceEntry = (PBDA_FILTER_INSTANCE_ENTRY)CONTAINING_RECORD(Entry, BDA_FILTER_INSTANCE_ENTRY, Entry);
/* is the instance entry the requested one */
if (InstanceEntry == (PBDA_FILTER_INSTANCE_ENTRY)Context)
{
RemoveEntryList(&InstanceEntry->Entry);
FreeItem(InstanceEntry);
break;
}
/* move to next entry */
Entry = Entry->Flink;
}
/* release spin lock */
KeReleaseSpinLock(&g_Settings.FilterFactoryInstanceListLock, OldLevel);
}
/*
@implemented
*/
@ -141,6 +178,16 @@ BdaCreateFilterFactoryEx(
if (NT_SUCCESS(Status))
{
/* add the item to filter object bag */
Status = KsAddItemToObjectBag(FilterFactory->Bag, FilterInstance, FreeFilterInstance);
if (!NT_SUCCESS(Status))
{
/* destroy filter instance */
FreeItem(FilterInstance);
KsDeleteFilterFactory(FilterFactory);
return Status;
}
/* initialize filter instance entry */
FilterInstance->FilterFactoryInstance = FilterFactory;
FilterInstance->FilterTemplate = (BDA_FILTER_TEMPLATE *)BdaFilterTemplate;
@ -154,6 +201,7 @@ BdaCreateFilterFactoryEx(
/* release spin lock */
KeReleaseSpinLock(&g_Settings.FilterFactoryInstanceListLock, OldLevel);
if (ppKSFilterFactory)
{
/* store result */