1// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
2/*******************************************************************************
3 *
4 * Module Name: nsaccess - Top-level functions for accessing ACPI namespace
5 *
6 ******************************************************************************/
7
8#include <acpi/acpi.h>
9#include "accommon.h"
10#include "amlcode.h"
11#include "acnamesp.h"
12#include "acdispat.h"
13
14#ifdef ACPI_ASL_COMPILER
15#include "acdisasm.h"
16#endif
17
18#define _COMPONENT          ACPI_NAMESPACE
19ACPI_MODULE_NAME("nsaccess")
20
21/*******************************************************************************
22 *
23 * FUNCTION:    acpi_ns_root_initialize
24 *
25 * PARAMETERS:  None
26 *
27 * RETURN:      Status
28 *
29 * DESCRIPTION: Allocate and initialize the default root named objects
30 *
31 * MUTEX:       Locks namespace for entire execution
32 *
33 ******************************************************************************/
34acpi_status acpi_ns_root_initialize(void)
35{
36	acpi_status status;
37	const struct acpi_predefined_names *init_val = NULL;
38	struct acpi_namespace_node *new_node;
39	struct acpi_namespace_node *prev_node = NULL;
40	union acpi_operand_object *obj_desc;
41	acpi_string val = NULL;
42
43	ACPI_FUNCTION_TRACE(ns_root_initialize);
44
45	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
46	if (ACPI_FAILURE(status)) {
47		return_ACPI_STATUS(status);
48	}
49
50	/*
51	 * The global root ptr is initially NULL, so a non-NULL value indicates
52	 * that acpi_ns_root_initialize() has already been called; just return.
53	 */
54	if (acpi_gbl_root_node) {
55		status = AE_OK;
56		goto unlock_and_exit;
57	}
58
59	/*
60	 * Tell the rest of the subsystem that the root is initialized
61	 * (This is OK because the namespace is locked)
62	 */
63	acpi_gbl_root_node = &acpi_gbl_root_node_struct;
64
65	/* Enter the predefined names in the name table */
66
67	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
68			  "Entering predefined entries into namespace\n"));
69
70	/*
71	 * Create the initial (default) namespace.
72	 * This namespace looks like something similar to this:
73	 *
74	 *   ACPI Namespace (from Namespace Root):
75	 *    0  _GPE Scope        00203160 00
76	 *    0  _PR_ Scope        002031D0 00
77	 *    0  _SB_ Device       00203240 00 Notify Object: 0020ADD8
78	 *    0  _SI_ Scope        002032B0 00
79	 *    0  _TZ_ Device       00203320 00
80	 *    0  _REV Integer      00203390 00 = 0000000000000002
81	 *    0  _OS_ String       00203488 00 Len 14 "Microsoft Windows NT"
82	 *    0  _GL_ Mutex        00203580 00 Object 002035F0
83	 *    0  _OSI Method       00203678 00 Args 1 Len 0000 Aml 00000000
84	 */
85	for (init_val = acpi_gbl_pre_defined_names; init_val->name; init_val++) {
86		status = AE_OK;
87
88		/* _OSI is optional for now, will be permanent later */
89
90		if (!strcmp(init_val->name, "_OSI")
91		    && !acpi_gbl_create_osi_method) {
92			continue;
93		}
94
95		/*
96		 * Create, init, and link the new predefined name
97		 * Note: No need to use acpi_ns_lookup here because all the
98		 * predefined names are at the root level. It is much easier to
99		 * just create and link the new node(s) here.
100		 */
101		new_node =
102		    acpi_ns_create_node(*ACPI_CAST_PTR(u32, init_val->name));
103		if (!new_node) {
104			status = AE_NO_MEMORY;
105			goto unlock_and_exit;
106		}
107
108		new_node->descriptor_type = ACPI_DESC_TYPE_NAMED;
109		new_node->type = init_val->type;
110
111		if (!prev_node) {
112			acpi_gbl_root_node_struct.child = new_node;
113		} else {
114			prev_node->peer = new_node;
115		}
116
117		new_node->parent = &acpi_gbl_root_node_struct;
118		prev_node = new_node;
119
120		/*
121		 * Name entered successfully. If entry in pre_defined_names[] specifies
122		 * an initial value, create the initial value.
123		 */
124		if (init_val->val) {
125			status = acpi_os_predefined_override(init_val, &val);
126			if (ACPI_FAILURE(status)) {
127				ACPI_ERROR((AE_INFO,
128					    "Could not override predefined %s",
129					    init_val->name));
130			}
131
132			if (!val) {
133				val = init_val->val;
134			}
135
136			/*
137			 * Entry requests an initial value, allocate a
138			 * descriptor for it.
139			 */
140			obj_desc =
141			    acpi_ut_create_internal_object(init_val->type);
142			if (!obj_desc) {
143				status = AE_NO_MEMORY;
144				goto unlock_and_exit;
145			}
146
147			/*
148			 * Convert value string from table entry to
149			 * internal representation. Only types actually
150			 * used for initial values are implemented here.
151			 */
152			switch (init_val->type) {
153			case ACPI_TYPE_METHOD:
154
155				obj_desc->method.param_count =
156				    (u8) ACPI_TO_INTEGER(val);
157				obj_desc->common.flags |= AOPOBJ_DATA_VALID;
158
159#if defined (ACPI_ASL_COMPILER)
160
161				/* Save the parameter count for the iASL compiler */
162
163				new_node->value = obj_desc->method.param_count;
164#else
165				/* Mark this as a very SPECIAL method (_OSI) */
166
167				obj_desc->method.info_flags =
168				    ACPI_METHOD_INTERNAL_ONLY;
169				obj_desc->method.dispatch.implementation =
170				    acpi_ut_osi_implementation;
171#endif
172				break;
173
174			case ACPI_TYPE_INTEGER:
175
176				obj_desc->integer.value = ACPI_TO_INTEGER(val);
177				break;
178
179			case ACPI_TYPE_STRING:
180
181				/* Build an object around the static string */
182
183				obj_desc->string.length = (u32)strlen(val);
184				obj_desc->string.pointer = val;
185				obj_desc->common.flags |= AOPOBJ_STATIC_POINTER;
186				break;
187
188			case ACPI_TYPE_MUTEX:
189
190				obj_desc->mutex.node = new_node;
191				obj_desc->mutex.sync_level =
192				    (u8) (ACPI_TO_INTEGER(val) - 1);
193
194				/* Create a mutex */
195
196				status =
197				    acpi_os_create_mutex(&obj_desc->mutex.
198							 os_mutex);
199				if (ACPI_FAILURE(status)) {
200					acpi_ut_remove_reference(obj_desc);
201					goto unlock_and_exit;
202				}
203
204				/* Special case for ACPI Global Lock */
205
206				if (strcmp(init_val->name, "_GL_") == 0) {
207					acpi_gbl_global_lock_mutex = obj_desc;
208
209					/* Create additional counting semaphore for global lock */
210
211					status =
212					    acpi_os_create_semaphore(1, 0,
213								     &acpi_gbl_global_lock_semaphore);
214					if (ACPI_FAILURE(status)) {
215						acpi_ut_remove_reference
216						    (obj_desc);
217						goto unlock_and_exit;
218					}
219				}
220				break;
221
222			default:
223
224				ACPI_ERROR((AE_INFO,
225					    "Unsupported initial type value 0x%X",
226					    init_val->type));
227				acpi_ut_remove_reference(obj_desc);
228				obj_desc = NULL;
229				continue;
230			}
231
232			/* Store pointer to value descriptor in the Node */
233
234			status = acpi_ns_attach_object(new_node, obj_desc,
235						       obj_desc->common.type);
236
237			/* Remove local reference to the object */
238
239			acpi_ut_remove_reference(obj_desc);
240		}
241	}
242
243unlock_and_exit:
244	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
245
246	/* Save a handle to "_GPE", it is always present */
247
248	if (ACPI_SUCCESS(status)) {
249		status = acpi_ns_get_node(NULL, "\\_GPE", ACPI_NS_NO_UPSEARCH,
250					  &acpi_gbl_fadt_gpe_device);
251	}
252
253	return_ACPI_STATUS(status);
254}
255
256/*******************************************************************************
257 *
258 * FUNCTION:    acpi_ns_lookup
259 *
260 * PARAMETERS:  scope_info      - Current scope info block
261 *              pathname        - Search pathname, in internal format
262 *                                (as represented in the AML stream)
263 *              type            - Type associated with name
264 *              interpreter_mode - IMODE_LOAD_PASS2 => add name if not found
265 *              flags           - Flags describing the search restrictions
266 *              walk_state      - Current state of the walk
267 *              return_node     - Where the Node is placed (if found
268 *                                or created successfully)
269 *
270 * RETURN:      Status
271 *
272 * DESCRIPTION: Find or enter the passed name in the name space.
273 *              Log an error if name not found in Exec mode.
274 *
275 * MUTEX:       Assumes namespace is locked.
276 *
277 ******************************************************************************/
278
279acpi_status
280acpi_ns_lookup(union acpi_generic_state *scope_info,
281	       char *pathname,
282	       acpi_object_type type,
283	       acpi_interpreter_mode interpreter_mode,
284	       u32 flags,
285	       struct acpi_walk_state *walk_state,
286	       struct acpi_namespace_node **return_node)
287{
288	acpi_status status;
289	char *path = pathname;
290	char *external_path;
291	struct acpi_namespace_node *prefix_node;
292	struct acpi_namespace_node *current_node = NULL;
293	struct acpi_namespace_node *this_node = NULL;
294	u32 num_segments;
295	u32 num_carats;
296	acpi_name simple_name;
297	acpi_object_type type_to_check_for;
298	acpi_object_type this_search_type;
299	u32 search_parent_flag = ACPI_NS_SEARCH_PARENT;
300	u32 local_flags;
301	acpi_interpreter_mode local_interpreter_mode;
302
303	ACPI_FUNCTION_TRACE(ns_lookup);
304
305	if (!return_node) {
306		return_ACPI_STATUS(AE_BAD_PARAMETER);
307	}
308
309	local_flags = flags &
310	    ~(ACPI_NS_ERROR_IF_FOUND | ACPI_NS_OVERRIDE_IF_FOUND |
311	      ACPI_NS_SEARCH_PARENT);
312	*return_node = ACPI_ENTRY_NOT_FOUND;
313	acpi_gbl_ns_lookup_count++;
314
315	if (!acpi_gbl_root_node) {
316		return_ACPI_STATUS(AE_NO_NAMESPACE);
317	}
318
319	/* Get the prefix scope. A null scope means use the root scope */
320
321	if ((!scope_info) || (!scope_info->scope.node)) {
322		ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
323				  "Null scope prefix, using root node (%p)\n",
324				  acpi_gbl_root_node));
325
326		prefix_node = acpi_gbl_root_node;
327	} else {
328		prefix_node = scope_info->scope.node;
329		if (ACPI_GET_DESCRIPTOR_TYPE(prefix_node) !=
330		    ACPI_DESC_TYPE_NAMED) {
331			ACPI_ERROR((AE_INFO, "%p is not a namespace node [%s]",
332				    prefix_node,
333				    acpi_ut_get_descriptor_name(prefix_node)));
334			return_ACPI_STATUS(AE_AML_INTERNAL);
335		}
336
337		if (!(flags & ACPI_NS_PREFIX_IS_SCOPE)) {
338			/*
339			 * This node might not be a actual "scope" node (such as a
340			 * Device/Method, etc.)  It could be a Package or other object
341			 * node. Backup up the tree to find the containing scope node.
342			 */
343			while (!acpi_ns_opens_scope(prefix_node->type) &&
344			       prefix_node->type != ACPI_TYPE_ANY) {
345				prefix_node = prefix_node->parent;
346			}
347		}
348	}
349
350	/* Save type. TBD: may be no longer necessary */
351
352	type_to_check_for = type;
353
354	/*
355	 * Begin examination of the actual pathname
356	 */
357	if (!pathname) {
358
359		/* A Null name_path is allowed and refers to the root */
360
361		num_segments = 0;
362		this_node = acpi_gbl_root_node;
363		path = "";
364
365		ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
366				  "Null Pathname (Zero segments), Flags=%X\n",
367				  flags));
368	} else {
369		/*
370		 * Name pointer is valid (and must be in internal name format)
371		 *
372		 * Check for scope prefixes:
373		 *
374		 * As represented in the AML stream, a namepath consists of an
375		 * optional scope prefix followed by a name segment part.
376		 *
377		 * If present, the scope prefix is either a Root Prefix (in
378		 * which case the name is fully qualified), or one or more
379		 * Parent Prefixes (in which case the name's scope is relative
380		 * to the current scope).
381		 */
382		if (*path == (u8) AML_ROOT_PREFIX) {
383
384			/* Pathname is fully qualified, start from the root */
385
386			this_node = acpi_gbl_root_node;
387			search_parent_flag = ACPI_NS_NO_UPSEARCH;
388
389			/* Point to name segment part */
390
391			path++;
392
393			ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
394					  "Path is absolute from root [%p]\n",
395					  this_node));
396		} else {
397			/* Pathname is relative to current scope, start there */
398
399			ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
400					  "Searching relative to prefix scope [%4.4s] (%p)\n",
401					  acpi_ut_get_node_name(prefix_node),
402					  prefix_node));
403
404			/*
405			 * Handle multiple Parent Prefixes (carat) by just getting
406			 * the parent node for each prefix instance.
407			 */
408			this_node = prefix_node;
409			num_carats = 0;
410			while (*path == (u8) AML_PARENT_PREFIX) {
411
412				/* Name is fully qualified, no search rules apply */
413
414				search_parent_flag = ACPI_NS_NO_UPSEARCH;
415
416				/*
417				 * Point past this prefix to the name segment
418				 * part or the next Parent Prefix
419				 */
420				path++;
421
422				/* Backup to the parent node */
423
424				num_carats++;
425				this_node = this_node->parent;
426				if (!this_node) {
427					/*
428					 * Current scope has no parent scope. Externalize
429					 * the internal path for error message.
430					 */
431					status =
432					    acpi_ns_externalize_name
433					    (ACPI_UINT32_MAX, pathname, NULL,
434					     &external_path);
435					if (ACPI_SUCCESS(status)) {
436						ACPI_ERROR((AE_INFO,
437							    "%s: Path has too many parent prefixes (^)",
438							    external_path));
439
440						ACPI_FREE(external_path);
441					}
442
443					return_ACPI_STATUS(AE_NOT_FOUND);
444				}
445			}
446
447			if (search_parent_flag == ACPI_NS_NO_UPSEARCH) {
448				ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
449						  "Search scope is [%4.4s], path has %u carat(s)\n",
450						  acpi_ut_get_node_name
451						  (this_node), num_carats));
452			}
453		}
454
455		/*
456		 * Determine the number of ACPI name segments in this pathname.
457		 *
458		 * The segment part consists of either:
459		 *  - A Null name segment (0)
460		 *  - A dual_name_prefix followed by two 4-byte name segments
461		 *  - A multi_name_prefix followed by a byte indicating the
462		 *      number of segments and the segments themselves.
463		 *  - A single 4-byte name segment
464		 *
465		 * Examine the name prefix opcode, if any, to determine the number of
466		 * segments.
467		 */
468		switch (*path) {
469		case 0:
470			/*
471			 * Null name after a root or parent prefixes. We already
472			 * have the correct target node and there are no name segments.
473			 */
474			num_segments = 0;
475			type = this_node->type;
476
477			ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
478					  "Prefix-only Pathname (Zero name segments), Flags=%X\n",
479					  flags));
480			break;
481
482		case AML_DUAL_NAME_PREFIX:
483
484			/* More than one name_seg, search rules do not apply */
485
486			search_parent_flag = ACPI_NS_NO_UPSEARCH;
487
488			/* Two segments, point to first name segment */
489
490			num_segments = 2;
491			path++;
492
493			ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
494					  "Dual Pathname (2 segments, Flags=%X)\n",
495					  flags));
496			break;
497
498		case AML_MULTI_NAME_PREFIX:
499
500			/* More than one name_seg, search rules do not apply */
501
502			search_parent_flag = ACPI_NS_NO_UPSEARCH;
503
504			/* Extract segment count, point to first name segment */
505
506			path++;
507			num_segments = (u32) (u8) * path;
508			path++;
509
510			ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
511					  "Multi Pathname (%u Segments, Flags=%X)\n",
512					  num_segments, flags));
513			break;
514
515		default:
516			/*
517			 * Not a Null name, no Dual or Multi prefix, hence there is
518			 * only one name segment and Pathname is already pointing to it.
519			 */
520			num_segments = 1;
521
522			ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
523					  "Simple Pathname (1 segment, Flags=%X)\n",
524					  flags));
525			break;
526		}
527
528		ACPI_DEBUG_EXEC(acpi_ns_print_pathname(num_segments, path));
529	}
530
531	/*
532	 * Search namespace for each segment of the name. Loop through and
533	 * verify (or add to the namespace) each name segment.
534	 *
535	 * The object type is significant only at the last name
536	 * segment. (We don't care about the types along the path, only
537	 * the type of the final target object.)
538	 */
539	this_search_type = ACPI_TYPE_ANY;
540	current_node = this_node;
541
542	while (num_segments && current_node) {
543		num_segments--;
544		if (!num_segments) {
545
546			/* This is the last segment, enable typechecking */
547
548			this_search_type = type;
549
550			/*
551			 * Only allow automatic parent search (search rules) if the caller
552			 * requested it AND we have a single, non-fully-qualified name_seg
553			 */
554			if ((search_parent_flag != ACPI_NS_NO_UPSEARCH) &&
555			    (flags & ACPI_NS_SEARCH_PARENT)) {
556				local_flags |= ACPI_NS_SEARCH_PARENT;
557			}
558
559			/* Set error flag according to caller */
560
561			if (flags & ACPI_NS_ERROR_IF_FOUND) {
562				local_flags |= ACPI_NS_ERROR_IF_FOUND;
563			}
564
565			/* Set override flag according to caller */
566
567			if (flags & ACPI_NS_OVERRIDE_IF_FOUND) {
568				local_flags |= ACPI_NS_OVERRIDE_IF_FOUND;
569			}
570		}
571
572		/* Handle opcodes that create a new name_seg via a full name_path */
573
574		local_interpreter_mode = interpreter_mode;
575		if ((flags & ACPI_NS_PREFIX_MUST_EXIST) && (num_segments > 0)) {
576
577			/* Every element of the path must exist (except for the final name_seg) */
578
579			local_interpreter_mode = ACPI_IMODE_EXECUTE;
580		}
581
582		/* Extract one ACPI name from the front of the pathname */
583
584		ACPI_MOVE_32_TO_32(&simple_name, path);
585
586		/* Try to find the single (4 character) ACPI name */
587
588		status =
589		    acpi_ns_search_and_enter(simple_name, walk_state,
590					     current_node,
591					     local_interpreter_mode,
592					     this_search_type, local_flags,
593					     &this_node);
594		if (ACPI_FAILURE(status)) {
595			if (status == AE_NOT_FOUND) {
596#if !defined ACPI_ASL_COMPILER	/* Note: iASL reports this error by itself, not needed here */
597				if (flags & ACPI_NS_PREFIX_MUST_EXIST) {
598					acpi_os_printf(ACPI_MSG_BIOS_ERROR
599						       "Object does not exist: %4.4s\n",
600						       (char *)&simple_name);
601				}
602#endif
603				/* Name not found in ACPI namespace */
604
605				ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
606						  "Name [%4.4s] not found in scope [%4.4s] %p\n",
607						  (char *)&simple_name,
608						  (char *)&current_node->name,
609						  current_node));
610			}
611#ifdef ACPI_EXEC_APP
612			if ((status == AE_ALREADY_EXISTS) &&
613			    (this_node->flags & ANOBJ_NODE_EARLY_INIT)) {
614				this_node->flags &= ~ANOBJ_NODE_EARLY_INIT;
615				status = AE_OK;
616			}
617#endif
618
619#ifdef ACPI_ASL_COMPILER
620			/*
621			 * If this ACPI name already exists within the namespace as an
622			 * external declaration, then mark the external as a conflicting
623			 * declaration and proceed to process the current node as if it did
624			 * not exist in the namespace. If this node is not processed as
625			 * normal, then it could cause improper namespace resolution
626			 * by failing to open a new scope.
627			 */
628			if (acpi_gbl_disasm_flag &&
629			    (status == AE_ALREADY_EXISTS) &&
630			    ((this_node->flags & ANOBJ_IS_EXTERNAL) ||
631			     (walk_state
632			      && walk_state->opcode == AML_EXTERNAL_OP))) {
633				this_node->flags &= ~ANOBJ_IS_EXTERNAL;
634				this_node->type = (u8)this_search_type;
635				if (walk_state->opcode != AML_EXTERNAL_OP) {
636					acpi_dm_mark_external_conflict
637					    (this_node);
638				}
639				break;
640			}
641#endif
642
643			*return_node = this_node;
644			return_ACPI_STATUS(status);
645		}
646
647		/* More segments to follow? */
648
649		if (num_segments > 0) {
650			/*
651			 * If we have an alias to an object that opens a scope (such as a
652			 * device or processor), we need to dereference the alias here so
653			 * that we can access any children of the original node (via the
654			 * remaining segments).
655			 */
656			if (this_node->type == ACPI_TYPE_LOCAL_ALIAS) {
657				if (!this_node->object) {
658					return_ACPI_STATUS(AE_NOT_EXIST);
659				}
660
661				if (acpi_ns_opens_scope
662				    (((struct acpi_namespace_node *)
663				      this_node->object)->type)) {
664					this_node =
665					    (struct acpi_namespace_node *)
666					    this_node->object;
667				}
668			}
669		}
670
671		/* Special handling for the last segment (num_segments == 0) */
672
673		else {
674			/*
675			 * Sanity typecheck of the target object:
676			 *
677			 * If 1) This is the last segment (num_segments == 0)
678			 *    2) And we are looking for a specific type
679			 *       (Not checking for TYPE_ANY)
680			 *    3) Which is not an alias
681			 *    4) Which is not a local type (TYPE_SCOPE)
682			 *    5) And the type of target object is known (not TYPE_ANY)
683			 *    6) And target object does not match what we are looking for
684			 *
685			 * Then we have a type mismatch. Just warn and ignore it.
686			 */
687			if ((type_to_check_for != ACPI_TYPE_ANY) &&
688			    (type_to_check_for != ACPI_TYPE_LOCAL_ALIAS) &&
689			    (type_to_check_for != ACPI_TYPE_LOCAL_METHOD_ALIAS)
690			    && (type_to_check_for != ACPI_TYPE_LOCAL_SCOPE)
691			    && (this_node->type != ACPI_TYPE_ANY)
692			    && (this_node->type != type_to_check_for)) {
693
694				/* Complain about a type mismatch */
695
696				ACPI_WARNING((AE_INFO,
697					      "NsLookup: Type mismatch on %4.4s (%s), searching for (%s)",
698					      ACPI_CAST_PTR(char, &simple_name),
699					      acpi_ut_get_type_name(this_node->
700								    type),
701					      acpi_ut_get_type_name
702					      (type_to_check_for)));
703			}
704
705			/*
706			 * If this is the last name segment and we are not looking for a
707			 * specific type, but the type of found object is known, use that
708			 * type to (later) see if it opens a scope.
709			 */
710			if (type == ACPI_TYPE_ANY) {
711				type = this_node->type;
712			}
713		}
714
715		/* Point to next name segment and make this node current */
716
717		path += ACPI_NAMESEG_SIZE;
718		current_node = this_node;
719	}
720
721	/* Always check if we need to open a new scope */
722
723	if (!(flags & ACPI_NS_DONT_OPEN_SCOPE) && (walk_state)) {
724		/*
725		 * If entry is a type which opens a scope, push the new scope on the
726		 * scope stack.
727		 */
728		if (acpi_ns_opens_scope(type)) {
729			status =
730			    acpi_ds_scope_stack_push(this_node, type,
731						     walk_state);
732			if (ACPI_FAILURE(status)) {
733				return_ACPI_STATUS(status);
734			}
735		}
736	}
737#ifdef ACPI_EXEC_APP
738	if (flags & ACPI_NS_EARLY_INIT) {
739		this_node->flags |= ANOBJ_NODE_EARLY_INIT;
740	}
741#endif
742
743	*return_node = this_node;
744	return_ACPI_STATUS(AE_OK);
745}
746