NdisDprFreePacket

NdisDprFreePacket releases a driver-allocated packet descriptor and returns it to the free list. Because Windows CE does not support DPC IRQL, all NdisDprXXX functions perform identically to the non-DPR equivalent.

VOID NdisDprFreePacket(
  PNDIS_PACKET Packet
);

Parameters

• Packet
  [in] Pointer to the packet descriptor returned by NdisDprAllocatePacket or NdisAllocatePacket.

Return Values

None.

Remarks

Before calling NdisDprFreePacket, the driver either must call NdisFreeBuffer as many times as necessary to release all buffer descriptors chained to the packet, or it must call an NdisUnchainBufferAtXxx function as many times as necessary to save all pointers to buffer descriptors. Otherwise, memory associated with buffer descriptors in the chain remains unusable by the driver and by NDIS until the system is rebooted.

Requirements

OS Versions: Windows CE .NET 4.0 and later.
Header: Ndis.h.

See Also

MiniportDisableInterrupt | MiniportISR | MiniportSynchronizeISR | NdisAcquireSpinLock | NdisAllocatePacket | NdisAllocatePacketPool | NdisAllocateSpinLock | NdisDprAllocatePacket | NdisDprFreePacket | NdisDprFreePacketNonInterlocked | NdisDprReleaseSpinLock | NdisFreeBuffer | NdisFreePacket | NdisMSynchronizeWithInterrupt | NdisReleaseSpinLock

 Last updated on Tuesday, May 18, 2004

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