diff options
| -rw-r--r-- | driver/wintun.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/driver/wintun.c b/driver/wintun.c index d1f3b9f..82e346b 100644 --- a/driver/wintun.c +++ b/driver/wintun.c @@ -284,14 +284,13 @@ TunSendNetBufferLists( TUN_RING *Ring = Ctx->Device.Send.Ring; ULONG RingCapacity = Ctx->Device.Send.Capacity; - /* Allocate space for packets in the ring. */ - ULONG RingHead = ReadULongAcquire(&Ring->Head); - if (Status = NDIS_STATUS_ADAPTER_NOT_READY, RingHead >= RingCapacity) - goto skipNbl; - KLOCK_QUEUE_HANDLE LockHandle; KeAcquireInStackQueuedSpinLock(&Ctx->Device.Send.Lock, &LockHandle); + /* Allocate space for packets in the ring. */ + ULONG RingHead = ReadULongAcquire(&Ring->Head); + if (Status = NDIS_STATUS_ADAPTER_NOT_READY, RingHead >= RingCapacity) + goto cleanupKeReleaseInStackQueuedSpinLock; ULONG RingTail = Ctx->Device.Send.RingTail; ASSERT(RingTail < RingCapacity); @@ -419,8 +418,8 @@ TunReturnNetBufferLists(NDIS_HANDLE MiniportAdapterContext, PNET_BUFFER_LIST Net Ctx->Device.Receive.ActiveNbls.Head = NET_BUFFER_LIST_NEXT_NBL_EX(CompletedNbl); if (!Ctx->Device.Receive.ActiveNbls.Head) KeSetEvent(&Ctx->Device.Receive.ActiveNbls.Empty, IO_NO_INCREMENT, FALSE); - KeReleaseInStackQueuedSpinLock(&LockHandle); WriteULongRelease(&Ring->Head, TunNblGetOffset(CompletedNbl)); + KeReleaseInStackQueuedSpinLock(&LockHandle); const MDL *TargetMdl = Ctx->Device.Receive.Mdl; for (MDL *Mdl = NET_BUFFER_FIRST_MDL(NET_BUFFER_LIST_FIRST_NB(CompletedNbl)); Mdl; Mdl = Mdl->Next) { |