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[NPFS]

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- Fix a potential CCB state inconsistency if the IRP is canceled before adding it to the pending list
- Don't wait if the IRP has been canceled
- Preserve the return status of NpfsAddListeningServerInstance

svn path=/trunk/; revision=54328
This commit is contained in:
Cameron Gutman 2011-11-07 01:37:35 +00:00
parent 3eff89fe04
commit 945a5972a9
1 changed files with 3 additions and 6 deletions
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9
reactos/drivers/filesystems/npfs/fsctrl.c
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@ -60,6 +60,7 @@ NpfsAddListeningServerInstance(PIRP Irp,
IoAcquireCancelSpinLock(&oldIrql);
if (!Irp->Cancel)
{
Ccb->PipeState = FILE_PIPE_LISTENING_STATE;
IoMarkIrpPending(Irp);
InsertTailList(&Ccb->Fcb->WaiterListHead, &Entry->Entry);
(void)IoSetCancelRoutine(Irp, NpfsListeningCancelRoutine);
@ -174,21 +175,17 @@ NpfsConnectPipe(PIRP Irp,
/* no listening client fcb found */
DPRINT("No listening client fcb found -- waiting for client\n");
Ccb->PipeState = FILE_PIPE_LISTENING_STATE;
Status = NpfsAddListeningServerInstance(Irp, Ccb);
KeUnlockMutex(&Fcb->CcbListLock);
if (Flags & FO_SYNCHRONOUS_IO)
if ((Status == STATUS_PENDING) && (Flags & FO_SYNCHRONOUS_IO))
{
Status = KeWaitForSingleObject(&Ccb->ConnectEvent,
KeWaitForSingleObject(&Ccb->ConnectEvent,
UserRequest,
Irp->RequestorMode,
(Flags & FO_ALERTABLE_IO),
NULL);
if ((Status == STATUS_USER_APC) || (Status == STATUS_KERNEL_APC) || (Status == STATUS_ALERTED))
Status = STATUS_CANCELLED;
}
DPRINT("NpfsConnectPipe() done (Status %lx)\n", Status);