Intel Extensible Firmware Interface - page 72

Extensible Firmware Interface Specification
54 12/12/00 Version 1.02
3.2.5 FreePool()
Summary
Returns pool memory to the system.
Prototype
EFI_STATUS
FreePool (
IN VOID *Buffer
);
Parameters
Buffer Pointer to the buffer to free.
Description
The FreePool() function returns the memory specified by Buffer to the system. On return,
the memory’s type is EfiConventionalMemory. The Buffer that is freed must have been
allocated by AllocatePool().
Status Codes Returned
EFI_SUCCESS The memory was returned to the system.
EFI_INVALID_PARAMETER Buffer was invalid.