Function free

src/lib/malloc.c:72–91

}

void free(void *ptr)
{
	if (ptr == NULL)
		return;

	if (ptr < (void *)&_heap || ptr >= free_mem_end_ptr) {
		printk(BIOS_WARNING, "Pointer passed to %s is not "
					"pointing to the heap\n", __func__);
		return;
	}

	/*
	 * Rewind the heap pointer to the end of heap
	 * before the last successful malloc().
	 */
	if (ptr == free_last_alloc_ptr) {
		free_mem_ptr = free_last_alloc_ptr;
		free_last_alloc_ptr = NULL;
	}
}