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[FASTFAT]

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- Fix incorrect referencing in VfatCreateFile. vfatGetFCBForFile expects a reference on ParentFcb (and may release it), and also returns a referenced parent FCB.
CORE-8756 #resolve

svn path=/trunk/; revision=65276
This commit is contained in:
Thomas Faber 2014-11-05 23:23:52 +00:00
parent 46f478ab95
commit 0e9ce28f2c
3 changed files with 7 additions and 15 deletions
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11
reactos/drivers/filesystems/fastfat/create.c
View file

@ -565,11 +565,14 @@ VfatCreateFile(
LONG idx, FileNameLen;
ParentFcb = (FileObject->RelatedFileObject != NULL) ? FileObject->RelatedFileObject->FsContext : NULL;
Status = vfatGetFCBForFile(DeviceExt, &ParentFcb, &TargetFcb, &PathNameU);
if (Status == STATUS_SUCCESS)
if (ParentFcb)
{
vfatGrabFCB(DeviceExt, ParentFcb);
}
Status = vfatGetFCBForFile(DeviceExt, &ParentFcb, &TargetFcb, &PathNameU);
if (NT_SUCCESS(Status))
{
vfatReleaseFCB(DeviceExt, TargetFcb);
Irp->IoStatus.Information = FILE_EXISTS;
}
@ -623,6 +626,7 @@ VfatCreateFile(
if (NT_SUCCESS(Status))
{
pFcb = FileObject->FsContext;
ASSERT(pFcb == ParentFcb);
if (pFcb->OpenHandleCount == 0)
{
@ -640,7 +644,6 @@ VfatCreateFile(
FALSE);
if (!NT_SUCCESS(Status))
{
vfatReleaseFCB(DeviceExt, ParentFcb);
VfatCloseFile(DeviceExt, FileObject);
return Status;
}

6
reactos/drivers/filesystems/fastfat/direntry.c
View file

@ -201,12 +201,6 @@ FATGetNextDirEntry(
CcUnpinData(*pContext);
}
if (!pDirFcb->FileObject)
{
DPRINT1("Buggy FCB (cleaned up)! %S (%d / %u)\n", pDirFcb->PathNameBuffer, pDirFcb->RefCount, pDirFcb->OpenHandleCount);
return STATUS_NO_MORE_ENTRIES;
}
if (FileOffset.u.LowPart >= pDirFcb->RFCB.FileSize.u.LowPart ||
!CcMapData(pDirFcb->FileObject, &FileOffset, PAGE_SIZE, TRUE, pContext, pPage))
{

5
reactos/drivers/filesystems/fastfat/dirwr.c
View file

@ -167,11 +167,6 @@ vfatFindDirSpace(
{
CcUnpinData(Context);
}
if (!pDirFcb->FileObject)
{
DPRINT1("Buggy FCB (cleaned up)! %S (%d / %u)\n", pDirFcb->PathNameBuffer, pDirFcb->RefCount, pDirFcb->OpenHandleCount);
return FALSE;
}
if (!CcPinRead(pDirFcb->FileObject, &FileOffset, DeviceExt->FatInfo.BytesPerCluster,
TRUE, &Context, (PVOID*)&pFatEntry))
{