FltFreeExtraCreateParameter - NtDoc
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// fltkernel.h
VOID FLTAPI FltFreeExtraCreateParameter(
[in] PFLT_FILTER Filter,
[in] PVOID EcpContext
);
View the official Windows Driver Kit DDI referenceNo description available.
The FltFreeExtraCreateParameter routine frees the memory for an ECP context structure.
Filter [in]Opaque filter pointer for the minifilter driver. This pointer uniquely identifies the minifilter driver and remains constant as long as the minifilter driver is loaded.
EcpContext [in]Pointer to the extra create parameter (ECP) context structure to be freed.
None.
If the ECP context structure to be freed is still attached to an ECP list, it must first be detached from the list by the FltRemoveExtraCreateParameter routine before the FltFreeExtraCreateParameter routine can be called to free it.
If a cleanup callback routine of type PFSRTL_EXTRA_CREATE_PARAMETER_CLEANUP_CALLBACK was defined for the given ECP context structure, this callback routine is invoked upon deletion of the ECP context structure. For more information, see PFSRTL_EXTRA_CREATE_PARAMETER_CLEANUP_CALLBACK.
FltAllocateExtraCreateParameter
FltAllocateExtraCreateParameterFromLookasideList
FltFreeExtraCreateParameterList
PFSRTL_EXTRA_CREATE_PARAMETER_CLEANUP_CALLBACK