StorPortFreeHostMemoryBuffer - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// storport.h

ULONG StorPortFreeHostMemoryBuffer(
  [in] PVOID         HwDeviceExtension,
       PACCESS_RANGE PhysicalAddressRanges,
  [in] ULONG         PhysicalAddressRangeCount
);
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nf-storport-storportfreehostmemorybuffer)

StorPortFreeHostMemoryBuffer function

Description

The StorPortFreeHostMemoryBuffer routine frees the physically contiguous memory that was allocated to be used for a Host Memory Buffer (HMB)

Parameters

HwDeviceExtension [in]

A pointer to the hardware device extension for the host bus adapter (HBA).

PhysicalAddressRanges

The array of physical address ranges that make up the Host Memory Buffer previously allocated by StorPortAllocateHostMemoryBuffer.

PhysicalAddressRangeCount [in]

The number of entries in PhysicalAddressRanges.

Return value

StorPortFreeHostMemoryBuffer returns one of the following status codes:

Return code Description
STOR_STATUS_SUCCESS The host memory buffer was successfully freed.
STOR_STATUS_UNSUCCESSFUL The host memory buffer was not valid (likely already freed).

See also

StorPortAllocateHostMemoryBuffer

View the official Windows Driver Kit DDI reference

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