 void acpi_ns_terminate(void)
 {
 	acpi_status status;
	union acpi_operand_object *prev;
	union acpi_operand_object *next;
 
 	ACPI_FUNCTION_TRACE(ns_terminate);
 
	/* Delete any module-level code blocks */
 
	next = acpi_gbl_module_code_list;
	while (next) {
		prev = next;
		next = next->method.mutex;
		prev->method.mutex = NULL;	/* Clear the Mutex (cheated) field */
		acpi_ut_remove_reference(prev);
 	}
 
 	/*
 	 * Free the entire namespace -- all nodes and all objects
	 * attached to the nodes
	 */
	acpi_ns_delete_namespace_subtree(acpi_gbl_root_node);

	/* Delete any objects attached to the root node */

	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
	if (ACPI_FAILURE(status)) {
		return_VOID;
	}

	acpi_ns_delete_node(acpi_gbl_root_node);
	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);

	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace freed\n"));
	return_VOID;
}

The product does not handle or incorrectly handles an exceptional condition.