1 /******************************************************************************
2 *
3 * Module Name: nsconvert - Object conversions for objects returned by
4 * predefined methods
5 *
6 *****************************************************************************/
7
8 /******************************************************************************
9 *
10 * 1. Copyright Notice
11 *
12 * Some or all of this work - Copyright (c) 1999 - 2023, Intel Corp.
13 * All rights reserved.
14 *
15 * 2. License
16 *
17 * 2.1. This is your license from Intel Corp. under its intellectual property
18 * rights. You may have additional license terms from the party that provided
19 * you this software, covering your right to use that party's intellectual
20 * property rights.
21 *
22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
23 * copy of the source code appearing in this file ("Covered Code") an
24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
25 * base code distributed originally by Intel ("Original Intel Code") to copy,
26 * make derivatives, distribute, use and display any portion of the Covered
27 * Code in any form, with the right to sublicense such rights; and
28 *
29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
30 * license (with the right to sublicense), under only those claims of Intel
31 * patents that are infringed by the Original Intel Code, to make, use, sell,
32 * offer to sell, and import the Covered Code and derivative works thereof
33 * solely to the minimum extent necessary to exercise the above copyright
34 * license, and in no event shall the patent license extend to any additions
35 * to or modifications of the Original Intel Code. No other license or right
36 * is granted directly or by implication, estoppel or otherwise;
37 *
38 * The above copyright and patent license is granted only if the following
39 * conditions are met:
40 *
41 * 3. Conditions
42 *
43 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
44 * Redistribution of source code of any substantial portion of the Covered
45 * Code or modification with rights to further distribute source must include
46 * the above Copyright Notice, the above License, this list of Conditions,
47 * and the following Disclaimer and Export Compliance provision. In addition,
48 * Licensee must cause all Covered Code to which Licensee contributes to
49 * contain a file documenting the changes Licensee made to create that Covered
50 * Code and the date of any change. Licensee must include in that file the
51 * documentation of any changes made by any predecessor Licensee. Licensee
52 * must include a prominent statement that the modification is derived,
53 * directly or indirectly, from Original Intel Code.
54 *
55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
56 * Redistribution of source code of any substantial portion of the Covered
57 * Code or modification without rights to further distribute source must
58 * include the following Disclaimer and Export Compliance provision in the
59 * documentation and/or other materials provided with distribution. In
60 * addition, Licensee may not authorize further sublicense of source of any
61 * portion of the Covered Code, and must include terms to the effect that the
62 * license from Licensee to its licensee is limited to the intellectual
63 * property embodied in the software Licensee provides to its licensee, and
64 * not to intellectual property embodied in modifications its licensee may
65 * make.
66 *
67 * 3.3. Redistribution of Executable. Redistribution in executable form of any
68 * substantial portion of the Covered Code or modification must reproduce the
69 * above Copyright Notice, and the following Disclaimer and Export Compliance
70 * provision in the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3.4. Intel retains all right, title, and interest in and to the Original
74 * Intel Code.
75 *
76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
77 * Intel shall be used in advertising or otherwise to promote the sale, use or
78 * other dealings in products derived from or relating to the Covered Code
79 * without prior written authorization from Intel.
80 *
81 * 4. Disclaimer and Export Compliance
82 *
83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
89 * PARTICULAR PURPOSE.
90 *
91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
98 * LIMITED REMEDY.
99 *
100 * 4.3. Licensee shall not export, either directly or indirectly, any of this
101 * software or system incorporating such software without first obtaining any
102 * required license or other approval from the U. S. Department of Commerce or
103 * any other agency or department of the United States Government. In the
104 * event Licensee exports any such software from the United States or
105 * re-exports any such software from a foreign destination, Licensee shall
106 * ensure that the distribution and export/re-export of the software is in
107 * compliance with all laws, regulations, orders, or other restrictions of the
108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
109 * any of its subsidiaries will export/re-export any technical data, process,
110 * software, or service, directly or indirectly, to any country for which the
111 * United States government or any agency thereof requires an export license,
112 * other governmental approval, or letter of assurance, without first obtaining
113 * such license, approval or letter.
114 *
115 *****************************************************************************
116 *
117 * Alternatively, you may choose to be licensed under the terms of the
118 * following license:
119 *
120 * Redistribution and use in source and binary forms, with or without
121 * modification, are permitted provided that the following conditions
122 * are met:
123 * 1. Redistributions of source code must retain the above copyright
124 * notice, this list of conditions, and the following disclaimer,
125 * without modification.
126 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
127 * substantially similar to the "NO WARRANTY" disclaimer below
128 * ("Disclaimer") and any redistribution must be conditioned upon
129 * including a substantially similar Disclaimer requirement for further
130 * binary redistribution.
131 * 3. Neither the names of the above-listed copyright holders nor the names
132 * of any contributors may be used to endorse or promote products derived
133 * from this software without specific prior written permission.
134 *
135 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
136 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
137 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
138 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
139 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
140 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
141 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
142 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
143 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
144 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
145 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
146 *
147 * Alternatively, you may choose to be licensed under the terms of the
148 * GNU General Public License ("GPL") version 2 as published by the Free
149 * Software Foundation.
150 *
151 *****************************************************************************/
152
153 #include "acpi.h"
154 #include "accommon.h"
155 #include "acnamesp.h"
156 #include "acinterp.h"
157 #include "acpredef.h"
158 #include "amlresrc.h"
159
160 #define _COMPONENT ACPI_NAMESPACE
161 ACPI_MODULE_NAME ("nsconvert")
162
163
164 /*******************************************************************************
165 *
166 * FUNCTION: AcpiNsConvertToInteger
167 *
168 * PARAMETERS: OriginalObject - Object to be converted
169 * ReturnObject - Where the new converted object is returned
170 *
171 * RETURN: Status. AE_OK if conversion was successful.
172 *
173 * DESCRIPTION: Attempt to convert a String/Buffer object to an Integer.
174 *
175 ******************************************************************************/
176
177 ACPI_STATUS
AcpiNsConvertToInteger(ACPI_OPERAND_OBJECT * OriginalObject,ACPI_OPERAND_OBJECT ** ReturnObject)178 AcpiNsConvertToInteger (
179 ACPI_OPERAND_OBJECT *OriginalObject,
180 ACPI_OPERAND_OBJECT **ReturnObject)
181 {
182 ACPI_OPERAND_OBJECT *NewObject;
183 ACPI_STATUS Status;
184 UINT64 Value = 0;
185 UINT32 i;
186
187
188 switch (OriginalObject->Common.Type)
189 {
190 case ACPI_TYPE_STRING:
191
192 /* String-to-Integer conversion */
193
194 Status = AcpiUtStrtoul64 (OriginalObject->String.Pointer, &Value);
195 if (ACPI_FAILURE (Status))
196 {
197 return (Status);
198 }
199 break;
200
201 case ACPI_TYPE_BUFFER:
202
203 /* Buffer-to-Integer conversion. Max buffer size is 64 bits. */
204
205 if (OriginalObject->Buffer.Length > 8)
206 {
207 return (AE_AML_OPERAND_TYPE);
208 }
209
210 /* Extract each buffer byte to create the integer */
211
212 for (i = 0; i < OriginalObject->Buffer.Length; i++)
213 {
214 Value |= ((UINT64)
215 OriginalObject->Buffer.Pointer[i] << (i * 8));
216 }
217 break;
218
219 default:
220
221 return (AE_AML_OPERAND_TYPE);
222 }
223
224 NewObject = AcpiUtCreateIntegerObject (Value);
225 if (!NewObject)
226 {
227 return (AE_NO_MEMORY);
228 }
229
230 *ReturnObject = NewObject;
231 return (AE_OK);
232 }
233
234
235 /*******************************************************************************
236 *
237 * FUNCTION: AcpiNsConvertToString
238 *
239 * PARAMETERS: OriginalObject - Object to be converted
240 * ReturnObject - Where the new converted object is returned
241 *
242 * RETURN: Status. AE_OK if conversion was successful.
243 *
244 * DESCRIPTION: Attempt to convert a Integer/Buffer object to a String.
245 *
246 ******************************************************************************/
247
248 ACPI_STATUS
AcpiNsConvertToString(ACPI_OPERAND_OBJECT * OriginalObject,ACPI_OPERAND_OBJECT ** ReturnObject)249 AcpiNsConvertToString (
250 ACPI_OPERAND_OBJECT *OriginalObject,
251 ACPI_OPERAND_OBJECT **ReturnObject)
252 {
253 ACPI_OPERAND_OBJECT *NewObject;
254 ACPI_SIZE Length;
255 ACPI_STATUS Status;
256
257
258 switch (OriginalObject->Common.Type)
259 {
260 case ACPI_TYPE_INTEGER:
261 /*
262 * Integer-to-String conversion. Commonly, convert
263 * an integer of value 0 to a NULL string. The last element of
264 * _BIF and _BIX packages occasionally need this fix.
265 */
266 if (OriginalObject->Integer.Value == 0)
267 {
268 /* Allocate a new NULL string object */
269
270 NewObject = AcpiUtCreateStringObject (0);
271 if (!NewObject)
272 {
273 return (AE_NO_MEMORY);
274 }
275 }
276 else
277 {
278 Status = AcpiExConvertToString (OriginalObject,
279 &NewObject, ACPI_IMPLICIT_CONVERT_HEX);
280 if (ACPI_FAILURE (Status))
281 {
282 return (Status);
283 }
284 }
285 break;
286
287 case ACPI_TYPE_BUFFER:
288 /*
289 * Buffer-to-String conversion. Use a ToString
290 * conversion, no transform performed on the buffer data. The best
291 * example of this is the _BIF method, where the string data from
292 * the battery is often (incorrectly) returned as buffer object(s).
293 */
294 Length = 0;
295 while ((Length < OriginalObject->Buffer.Length) &&
296 (OriginalObject->Buffer.Pointer[Length]))
297 {
298 Length++;
299 }
300
301 /* Allocate a new string object */
302
303 NewObject = AcpiUtCreateStringObject (Length);
304 if (!NewObject)
305 {
306 return (AE_NO_MEMORY);
307 }
308
309 /*
310 * Copy the raw buffer data with no transform. String is already NULL
311 * terminated at Length+1.
312 */
313 memcpy (NewObject->String.Pointer,
314 OriginalObject->Buffer.Pointer, Length);
315 break;
316
317 default:
318
319 return (AE_AML_OPERAND_TYPE);
320 }
321
322 *ReturnObject = NewObject;
323 return (AE_OK);
324 }
325
326
327 /*******************************************************************************
328 *
329 * FUNCTION: AcpiNsConvertToBuffer
330 *
331 * PARAMETERS: OriginalObject - Object to be converted
332 * ReturnObject - Where the new converted object is returned
333 *
334 * RETURN: Status. AE_OK if conversion was successful.
335 *
336 * DESCRIPTION: Attempt to convert a Integer/String/Package object to a Buffer.
337 *
338 ******************************************************************************/
339
340 ACPI_STATUS
AcpiNsConvertToBuffer(ACPI_OPERAND_OBJECT * OriginalObject,ACPI_OPERAND_OBJECT ** ReturnObject)341 AcpiNsConvertToBuffer (
342 ACPI_OPERAND_OBJECT *OriginalObject,
343 ACPI_OPERAND_OBJECT **ReturnObject)
344 {
345 ACPI_OPERAND_OBJECT *NewObject;
346 ACPI_STATUS Status;
347 ACPI_OPERAND_OBJECT **Elements;
348 UINT32 *DwordBuffer;
349 UINT32 Count;
350 UINT32 i;
351
352
353 switch (OriginalObject->Common.Type)
354 {
355 case ACPI_TYPE_INTEGER:
356 /*
357 * Integer-to-Buffer conversion.
358 * Convert the Integer to a packed-byte buffer. _MAT and other
359 * objects need this sometimes, if a read has been performed on a
360 * Field object that is less than or equal to the global integer
361 * size (32 or 64 bits).
362 */
363 Status = AcpiExConvertToBuffer (OriginalObject, &NewObject);
364 if (ACPI_FAILURE (Status))
365 {
366 return (Status);
367 }
368 break;
369
370 case ACPI_TYPE_STRING:
371
372 /* String-to-Buffer conversion. Simple data copy */
373
374 NewObject = AcpiUtCreateBufferObject
375 (OriginalObject->String.Length);
376 if (!NewObject)
377 {
378 return (AE_NO_MEMORY);
379 }
380
381 memcpy (NewObject->Buffer.Pointer,
382 OriginalObject->String.Pointer, OriginalObject->String.Length);
383 break;
384
385 case ACPI_TYPE_PACKAGE:
386 /*
387 * This case is often seen for predefined names that must return a
388 * Buffer object with multiple DWORD integers within. For example,
389 * _FDE and _GTM. The Package can be converted to a Buffer.
390 */
391
392 /* All elements of the Package must be integers */
393
394 Elements = OriginalObject->Package.Elements;
395 Count = OriginalObject->Package.Count;
396
397 for (i = 0; i < Count; i++)
398 {
399 if ((!*Elements) ||
400 ((*Elements)->Common.Type != ACPI_TYPE_INTEGER))
401 {
402 return (AE_AML_OPERAND_TYPE);
403 }
404 Elements++;
405 }
406
407 /* Create the new buffer object to replace the Package */
408
409 NewObject = AcpiUtCreateBufferObject (ACPI_MUL_4 (Count));
410 if (!NewObject)
411 {
412 return (AE_NO_MEMORY);
413 }
414
415 /* Copy the package elements (integers) to the buffer as DWORDs */
416
417 Elements = OriginalObject->Package.Elements;
418 DwordBuffer = ACPI_CAST_PTR (UINT32, NewObject->Buffer.Pointer);
419
420 for (i = 0; i < Count; i++)
421 {
422 *DwordBuffer = (UINT32) (*Elements)->Integer.Value;
423 DwordBuffer++;
424 Elements++;
425 }
426 break;
427
428 default:
429
430 return (AE_AML_OPERAND_TYPE);
431 }
432
433 *ReturnObject = NewObject;
434 return (AE_OK);
435 }
436
437
438 /*******************************************************************************
439 *
440 * FUNCTION: AcpiNsConvertToUnicode
441 *
442 * PARAMETERS: Scope - Namespace node for the method/object
443 * OriginalObject - ASCII String Object to be converted
444 * ReturnObject - Where the new converted object is returned
445 *
446 * RETURN: Status. AE_OK if conversion was successful.
447 *
448 * DESCRIPTION: Attempt to convert a String object to a Unicode string Buffer.
449 *
450 ******************************************************************************/
451
452 ACPI_STATUS
AcpiNsConvertToUnicode(ACPI_NAMESPACE_NODE * Scope,ACPI_OPERAND_OBJECT * OriginalObject,ACPI_OPERAND_OBJECT ** ReturnObject)453 AcpiNsConvertToUnicode (
454 ACPI_NAMESPACE_NODE *Scope,
455 ACPI_OPERAND_OBJECT *OriginalObject,
456 ACPI_OPERAND_OBJECT **ReturnObject)
457 {
458 ACPI_OPERAND_OBJECT *NewObject;
459 char *AsciiString;
460 UINT16 *UnicodeBuffer;
461 UINT32 UnicodeLength;
462 UINT32 i;
463
464
465 if (!OriginalObject)
466 {
467 return (AE_OK);
468 }
469
470 /* If a Buffer was returned, it must be at least two bytes long */
471
472 if (OriginalObject->Common.Type == ACPI_TYPE_BUFFER)
473 {
474 if (OriginalObject->Buffer.Length < 2)
475 {
476 return (AE_AML_OPERAND_VALUE);
477 }
478
479 *ReturnObject = NULL;
480 return (AE_OK);
481 }
482
483 /*
484 * The original object is an ASCII string. Convert this string to
485 * a unicode buffer.
486 */
487 AsciiString = OriginalObject->String.Pointer;
488 UnicodeLength = (OriginalObject->String.Length * 2) + 2;
489
490 /* Create a new buffer object for the Unicode data */
491
492 NewObject = AcpiUtCreateBufferObject (UnicodeLength);
493 if (!NewObject)
494 {
495 return (AE_NO_MEMORY);
496 }
497
498 UnicodeBuffer = ACPI_CAST_PTR (UINT16, NewObject->Buffer.Pointer);
499
500 /* Convert ASCII to Unicode */
501
502 for (i = 0; i < OriginalObject->String.Length; i++)
503 {
504 UnicodeBuffer[i] = (UINT16) AsciiString[i];
505 }
506
507 *ReturnObject = NewObject;
508 return (AE_OK);
509 }
510
511
512 /*******************************************************************************
513 *
514 * FUNCTION: AcpiNsConvertToResource
515 *
516 * PARAMETERS: Scope - Namespace node for the method/object
517 * OriginalObject - Object to be converted
518 * ReturnObject - Where the new converted object is returned
519 *
520 * RETURN: Status. AE_OK if conversion was successful
521 *
522 * DESCRIPTION: Attempt to convert a Integer object to a ResourceTemplate
523 * Buffer.
524 *
525 ******************************************************************************/
526
527 ACPI_STATUS
AcpiNsConvertToResource(ACPI_NAMESPACE_NODE * Scope,ACPI_OPERAND_OBJECT * OriginalObject,ACPI_OPERAND_OBJECT ** ReturnObject)528 AcpiNsConvertToResource (
529 ACPI_NAMESPACE_NODE *Scope,
530 ACPI_OPERAND_OBJECT *OriginalObject,
531 ACPI_OPERAND_OBJECT **ReturnObject)
532 {
533 ACPI_OPERAND_OBJECT *NewObject;
534 UINT8 *Buffer;
535
536
537 /*
538 * We can fix the following cases for an expected resource template:
539 * 1. No return value (interpreter slack mode is disabled)
540 * 2. A "Return (Zero)" statement
541 * 3. A "Return empty buffer" statement
542 *
543 * We will return a buffer containing a single EndTag
544 * resource descriptor.
545 */
546 if (OriginalObject)
547 {
548 switch (OriginalObject->Common.Type)
549 {
550 case ACPI_TYPE_INTEGER:
551
552 /* We can only repair an Integer==0 */
553
554 if (OriginalObject->Integer.Value)
555 {
556 return (AE_AML_OPERAND_TYPE);
557 }
558 break;
559
560 case ACPI_TYPE_BUFFER:
561
562 if (OriginalObject->Buffer.Length)
563 {
564 /* Additional checks can be added in the future */
565
566 *ReturnObject = NULL;
567 return (AE_OK);
568 }
569 break;
570
571 case ACPI_TYPE_STRING:
572 default:
573
574 return (AE_AML_OPERAND_TYPE);
575 }
576 }
577
578 /* Create the new buffer object for the resource descriptor */
579
580 NewObject = AcpiUtCreateBufferObject (2);
581 if (!NewObject)
582 {
583 return (AE_NO_MEMORY);
584 }
585
586 Buffer = ACPI_CAST_PTR (UINT8, NewObject->Buffer.Pointer);
587
588 /* Initialize the Buffer with a single EndTag descriptor */
589
590 Buffer[0] = (ACPI_RESOURCE_NAME_END_TAG | ASL_RDESC_END_TAG_SIZE);
591 Buffer[1] = 0x00;
592
593 *ReturnObject = NewObject;
594 return (AE_OK);
595 }
596
597
598 /*******************************************************************************
599 *
600 * FUNCTION: AcpiNsConvertToReference
601 *
602 * PARAMETERS: Scope - Namespace node for the method/object
603 * OriginalObject - Object to be converted
604 * ReturnObject - Where the new converted object is returned
605 *
606 * RETURN: Status. AE_OK if conversion was successful
607 *
608 * DESCRIPTION: Attempt to convert a Integer object to a ObjectReference.
609 * Buffer.
610 *
611 ******************************************************************************/
612
613 ACPI_STATUS
AcpiNsConvertToReference(ACPI_NAMESPACE_NODE * Scope,ACPI_OPERAND_OBJECT * OriginalObject,ACPI_OPERAND_OBJECT ** ReturnObject)614 AcpiNsConvertToReference (
615 ACPI_NAMESPACE_NODE *Scope,
616 ACPI_OPERAND_OBJECT *OriginalObject,
617 ACPI_OPERAND_OBJECT **ReturnObject)
618 {
619 ACPI_OPERAND_OBJECT *NewObject = NULL;
620 ACPI_STATUS Status;
621 ACPI_NAMESPACE_NODE *Node;
622 ACPI_GENERIC_STATE ScopeInfo;
623 char *Name;
624
625
626 ACPI_FUNCTION_NAME (NsConvertToReference);
627
628
629 /* Convert path into internal presentation */
630
631 Status = AcpiNsInternalizeName (OriginalObject->String.Pointer, &Name);
632 if (ACPI_FAILURE (Status))
633 {
634 return_ACPI_STATUS (Status);
635 }
636
637 /* Find the namespace node */
638
639 ScopeInfo.Scope.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Scope);
640 Status = AcpiNsLookup (&ScopeInfo, Name,
641 ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
642 ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL, &Node);
643 if (ACPI_FAILURE (Status))
644 {
645 /* Check if we are resolving a named reference within a package */
646
647 ACPI_ERROR_NAMESPACE (&ScopeInfo,
648 OriginalObject->String.Pointer, Status);
649 goto ErrorExit;
650 }
651
652 /* Create and init a new internal ACPI object */
653
654 NewObject = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_REFERENCE);
655 if (!NewObject)
656 {
657 Status = AE_NO_MEMORY;
658 goto ErrorExit;
659 }
660 NewObject->Reference.Node = Node;
661 NewObject->Reference.Object = Node->Object;
662 NewObject->Reference.Class = ACPI_REFCLASS_NAME;
663
664 /*
665 * Increase reference of the object if needed (the object is likely a
666 * null for device nodes).
667 */
668 AcpiUtAddReference (Node->Object);
669
670 ErrorExit:
671 ACPI_FREE (Name);
672 *ReturnObject = NewObject;
673 return (Status);
674 }
675
