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Fixed the unlocking of pages from a mdl.

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svn path=/trunk/; revision=15131
This commit is contained in:
Hartmut Birr 2005-05-08 16:02:38 +00:00
parent 5fd03c29e4
commit 647ee2a30d
1 changed files with 7 additions and 11 deletions
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18
reactos/ntoskrnl/io/irp.c
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@ -61,7 +61,7 @@ IopCompleteRequest(PKAPC Apc,
{
PFILE_OBJECT FileObject;
PIRP Irp;
PMDL Mdl, NextMdl;
PMDL Mdl;
PKEVENT UserEvent;
BOOLEAN SyncIrp;
@ -101,17 +101,12 @@ IopCompleteRequest(PKAPC Apc,
Irp->Flags &= ~(IRP_BUFFERED_IO | IRP_DEALLOCATE_BUFFER);
/* Check if there's an MDL */
if ((Mdl = Irp->MdlAddress))
while ((Mdl = Irp->MdlAddress))
{
/* Clear all of them */
do
{
NextMdl = Mdl->Next;
IoFreeMdl(Mdl);
Mdl = NextMdl;
} while (Mdl);
Irp->MdlAddress = Mdl->Next;
IoFreeMdl(Mdl);
}
Irp->MdlAddress = NULL;
/* Remove the IRP from the list of Thread Pending IRPs */
RemoveEntryList(&Irp->ThreadListEntry);
@ -1122,11 +1117,12 @@ IofCompleteRequest(PIRP Irp,
}
/* Unlock MDL Pages, page 167. */
while ((Mdl = Irp->MdlAddress))
Mdl = Irp->MdlAddress;
while (Mdl)
{
DPRINT("Unlocking MDL: %x\n", Mdl);
Irp->MdlAddress = Mdl->Next;
MmUnlockPages(Mdl);
Mdl = Mdl->Next;
}
/* Check if we should exit because of a Deferred I/O (page 168) */