void
acpi_ps_delete_parse_tree (
union acpi_parse_object *subtree_root)
{
struct acpi_walk_state *walk_state;
struct acpi_thread_state *thread;
acpi_status status;
ACPI_FUNCTION_TRACE_PTR ("ps_delete_parse_tree", subtree_root);
if (!subtree_root) {
return_VOID;
}
/* Create and initialize a new walk list */
thread = acpi_ut_create_thread_state ();
if (!thread) {
return_VOID;
}
walk_state = acpi_ds_create_walk_state (0, NULL, NULL, thread);
if (!walk_state) {
return_VOID;
}
walk_state->parse_flags = 0;
walk_state->descending_callback = NULL;
walk_state->ascending_callback = NULL;
walk_state->origin = subtree_root;
walk_state->next_op = subtree_root;
/* Head downward in the tree */
walk_state->next_op_info = ACPI_NEXT_OP_DOWNWARD;
/* Visit all nodes in the subtree */
while (walk_state->next_op) {
status = acpi_ps_get_next_walk_op (walk_state, walk_state->next_op,
acpi_ps_delete_completed_op);
if (ACPI_FAILURE (status)) {
break;
}
}
/* We are done with this walk */
acpi_ut_delete_generic_state (ACPI_CAST_PTR (union acpi_generic_state, thread));
acpi_ds_delete_walk_state (walk_state);
return_VOID;
}
void
acpi_ps_delete_parse_tree (
ACPI_PARSE_OBJECT *subtree_root)
{
ACPI_WALK_STATE *walk_state;
ACPI_WALK_LIST walk_list;
if (!subtree_root) {
return;
}
/* Create and initialize a new walk list */
walk_list.walk_state = NULL;
walk_state = acpi_ds_create_walk_state (TABLE_ID_DSDT, NULL, NULL, &walk_list);
if (!walk_state) {
return;
}
walk_state->parser_state = NULL;
walk_state->parse_flags = 0;
walk_state->descending_callback = NULL;
walk_state->ascending_callback = NULL;
walk_state->origin = subtree_root;
walk_state->next_op = subtree_root;
/* Head downward in the tree */
walk_state->next_op_info = NEXT_OP_DOWNWARD;
/* Visit all nodes in the subtree */
while (walk_state->next_op) {
acpi_ps_get_next_walk_op (walk_state, walk_state->next_op,
acpi_ps_delete_completed_op);
}
/* We are done with this walk */
acpi_ds_delete_walk_state (walk_state);
return;
}
