1 /*******************************************************************************
2 *
3 * Module Name: utdelete - object deletion and reference count utilities
4 *
5 ******************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2014, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44 #define __UTDELETE_C__
45
46 #include "acpi.h"
47 #include "accommon.h"
48 #include "acinterp.h"
49 #include "acnamesp.h"
50 #include "acevents.h"
51
52
53 #define _COMPONENT ACPI_UTILITIES
54 ACPI_MODULE_NAME ("utdelete")
55
56 /* Local prototypes */
57
58 static void
59 AcpiUtDeleteInternalObj (
60 ACPI_OPERAND_OBJECT *Object);
61
62 static void
63 AcpiUtUpdateRefCount (
64 ACPI_OPERAND_OBJECT *Object,
65 UINT32 Action);
66
67
68 /*******************************************************************************
69 *
70 * FUNCTION: AcpiUtDeleteInternalObj
71 *
72 * PARAMETERS: Object - Object to be deleted
73 *
74 * RETURN: None
75 *
76 * DESCRIPTION: Low level object deletion, after reference counts have been
77 * updated (All reference counts, including sub-objects!)
78 *
79 ******************************************************************************/
80
81 static void
82 AcpiUtDeleteInternalObj (
83 ACPI_OPERAND_OBJECT *Object)
84 {
85 void *ObjPointer = NULL;
86 ACPI_OPERAND_OBJECT *HandlerDesc;
87 ACPI_OPERAND_OBJECT *SecondDesc;
88 ACPI_OPERAND_OBJECT *NextDesc;
89 ACPI_OPERAND_OBJECT **LastObjPtr;
90
91
92 ACPI_FUNCTION_TRACE_PTR (UtDeleteInternalObj, Object);
93
94
95 if (!Object)
96 {
97 return_VOID;
98 }
99
100 /*
101 * Must delete or free any pointers within the object that are not
102 * actual ACPI objects (for example, a raw buffer pointer).
103 */
104 switch (Object->Common.Type)
105 {
106 case ACPI_TYPE_STRING:
107
108 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "**** String %p, ptr %p\n",
109 Object, Object->String.Pointer));
110
111 /* Free the actual string buffer */
112
113 if (!(Object->Common.Flags & AOPOBJ_STATIC_POINTER))
114 {
115 /* But only if it is NOT a pointer into an ACPI table */
116
117 ObjPointer = Object->String.Pointer;
118 }
119 break;
120
121 case ACPI_TYPE_BUFFER:
122
123 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "**** Buffer %p, ptr %p\n",
124 Object, Object->Buffer.Pointer));
125
126 /* Free the actual buffer */
127
128 if (!(Object->Common.Flags & AOPOBJ_STATIC_POINTER))
129 {
130 /* But only if it is NOT a pointer into an ACPI table */
131
132 ObjPointer = Object->Buffer.Pointer;
133 }
134 break;
135
136 case ACPI_TYPE_PACKAGE:
137
138 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, " **** Package of count %X\n",
139 Object->Package.Count));
140
141 /*
142 * Elements of the package are not handled here, they are deleted
143 * separately
144 */
145
146 /* Free the (variable length) element pointer array */
147
148 ObjPointer = Object->Package.Elements;
149 break;
150
151 /*
152 * These objects have a possible list of notify handlers.
153 * Device object also may have a GPE block.
154 */
155 case ACPI_TYPE_DEVICE:
156
157 if (Object->Device.GpeBlock)
158 {
159 (void) AcpiEvDeleteGpeBlock (Object->Device.GpeBlock);
160 }
161
162 /*lint -fallthrough */
163
164 case ACPI_TYPE_PROCESSOR:
165 case ACPI_TYPE_THERMAL:
166
167 /* Walk the address handler list for this object */
168
169 HandlerDesc = Object->CommonNotify.Handler;
170 while (HandlerDesc)
171 {
172 NextDesc = HandlerDesc->AddressSpace.Next;
173 AcpiUtRemoveReference (HandlerDesc);
174 HandlerDesc = NextDesc;
175 }
176 break;
177
178 case ACPI_TYPE_MUTEX:
179
180 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
181 "***** Mutex %p, OS Mutex %p\n",
182 Object, Object->Mutex.OsMutex));
183
184 if (Object == AcpiGbl_GlobalLockMutex)
185 {
186 /* Global Lock has extra semaphore */
187
188 (void) AcpiOsDeleteSemaphore (AcpiGbl_GlobalLockSemaphore);
189 AcpiGbl_GlobalLockSemaphore = NULL;
190
191 AcpiOsDeleteMutex (Object->Mutex.OsMutex);
192 AcpiGbl_GlobalLockMutex = NULL;
193 }
194 else
195 {
196 AcpiExUnlinkMutex (Object);
197 AcpiOsDeleteMutex (Object->Mutex.OsMutex);
198 }
199 break;
200
201 case ACPI_TYPE_EVENT:
202
203 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
204 "***** Event %p, OS Semaphore %p\n",
205 Object, Object->Event.OsSemaphore));
206
207 (void) AcpiOsDeleteSemaphore (Object->Event.OsSemaphore);
208 Object->Event.OsSemaphore = NULL;
209 break;
210
211 case ACPI_TYPE_METHOD:
212
213 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
214 "***** Method %p\n", Object));
215
216 /* Delete the method mutex if it exists */
217
218 if (Object->Method.Mutex)
219 {
220 AcpiOsDeleteMutex (Object->Method.Mutex->Mutex.OsMutex);
221 AcpiUtDeleteObjectDesc (Object->Method.Mutex);
222 Object->Method.Mutex = NULL;
223 }
224 break;
225
226 case ACPI_TYPE_REGION:
227
228 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
229 "***** Region %p\n", Object));
230
231 /*
232 * Update AddressRange list. However, only permanent regions
233 * are installed in this list. (Not created within a method)
234 */
235 if (!(Object->Region.Node->Flags & ANOBJ_TEMPORARY))
236 {
237 AcpiUtRemoveAddressRange (Object->Region.SpaceId,
238 Object->Region.Node);
239 }
240
241 SecondDesc = AcpiNsGetSecondaryObject (Object);
242 if (SecondDesc)
243 {
244 /*
245 * Free the RegionContext if and only if the handler is one of the
246 * default handlers -- and therefore, we created the context object
247 * locally, it was not created by an external caller.
248 */
249 HandlerDesc = Object->Region.Handler;
250 if (HandlerDesc)
251 {
252 NextDesc = HandlerDesc->AddressSpace.RegionList;
253 LastObjPtr = &HandlerDesc->AddressSpace.RegionList;
254
255 /* Remove the region object from the handler's list */
256
257 while (NextDesc)
258 {
259 if (NextDesc == Object)
260 {
261 *LastObjPtr = NextDesc->Region.Next;
262 break;
263 }
264
265 /* Walk the linked list of handler */
266
267 LastObjPtr = &NextDesc->Region.Next;
268 NextDesc = NextDesc->Region.Next;
269 }
270
271 if (HandlerDesc->AddressSpace.HandlerFlags &
272 ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)
273 {
274 /* Deactivate region and free region context */
275
276 if (HandlerDesc->AddressSpace.Setup)
277 {
278 (void) HandlerDesc->AddressSpace.Setup (Object,
279 ACPI_REGION_DEACTIVATE,
280 HandlerDesc->AddressSpace.Context,
281 &SecondDesc->Extra.RegionContext);
282 }
283 }
284
285 AcpiUtRemoveReference (HandlerDesc);
286 }
287
288 /* Now we can free the Extra object */
289
290 AcpiUtDeleteObjectDesc (SecondDesc);
291 }
292 break;
293
294 case ACPI_TYPE_BUFFER_FIELD:
295
296 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
297 "***** Buffer Field %p\n", Object));
298
299 SecondDesc = AcpiNsGetSecondaryObject (Object);
300 if (SecondDesc)
301 {
302 AcpiUtDeleteObjectDesc (SecondDesc);
303 }
304 break;
305
306 case ACPI_TYPE_LOCAL_BANK_FIELD:
307
308 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
309 "***** Bank Field %p\n", Object));
310
311 SecondDesc = AcpiNsGetSecondaryObject (Object);
312 if (SecondDesc)
313 {
314 AcpiUtDeleteObjectDesc (SecondDesc);
315 }
316 break;
317
318 default:
319
320 break;
321 }
322
323 /* Free any allocated memory (pointer within the object) found above */
324
325 if (ObjPointer)
326 {
327 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Deleting Object Subptr %p\n",
328 ObjPointer));
329 ACPI_FREE (ObjPointer);
330 }
331
332 /* Now the object can be safely deleted */
333
334 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Deleting Object %p [%s]\n",
335 Object, AcpiUtGetObjectTypeName (Object)));
336
337 AcpiUtDeleteObjectDesc (Object);
338 return_VOID;
339 }
340
341
342 /*******************************************************************************
343 *
344 * FUNCTION: AcpiUtDeleteInternalObjectList
345 *
346 * PARAMETERS: ObjList - Pointer to the list to be deleted
347 *
348 * RETURN: None
349 *
350 * DESCRIPTION: This function deletes an internal object list, including both
351 * simple objects and package objects
352 *
353 ******************************************************************************/
354
355 void
356 AcpiUtDeleteInternalObjectList (
357 ACPI_OPERAND_OBJECT **ObjList)
358 {
359 ACPI_OPERAND_OBJECT **InternalObj;
360
361
362 ACPI_FUNCTION_ENTRY ();
363
364
365 /* Walk the null-terminated internal list */
366
367 for (InternalObj = ObjList; *InternalObj; InternalObj++)
368 {
369 AcpiUtRemoveReference (*InternalObj);
370 }
371
372 /* Free the combined parameter pointer list and object array */
373
374 ACPI_FREE (ObjList);
375 return;
376 }
377
378
379 /*******************************************************************************
380 *
381 * FUNCTION: AcpiUtUpdateRefCount
382 *
383 * PARAMETERS: Object - Object whose ref count is to be updated
384 * Action - What to do (REF_INCREMENT or REF_DECREMENT)
385 *
386 * RETURN: None. Sets new reference count within the object
387 *
388 * DESCRIPTION: Modify the reference count for an internal acpi object
389 *
390 ******************************************************************************/
391
392 static void
393 AcpiUtUpdateRefCount (
394 ACPI_OPERAND_OBJECT *Object,
395 UINT32 Action)
396 {
397 UINT16 OriginalCount;
398 UINT16 NewCount = 0;
399 ACPI_CPU_FLAGS LockFlags;
400
401
402 ACPI_FUNCTION_NAME (UtUpdateRefCount);
403
404
405 if (!Object)
406 {
407 return;
408 }
409
410 /*
411 * Always get the reference count lock. Note: Interpreter and/or
412 * Namespace is not always locked when this function is called.
413 */
414 LockFlags = AcpiOsAcquireLock (AcpiGbl_ReferenceCountLock);
415 OriginalCount = Object->Common.ReferenceCount;
416
417 /* Perform the reference count action (increment, decrement) */
418
419 switch (Action)
420 {
421 case REF_INCREMENT:
422
423 NewCount = OriginalCount + 1;
424 Object->Common.ReferenceCount = NewCount;
425 AcpiOsReleaseLock (AcpiGbl_ReferenceCountLock, LockFlags);
426
427 /* The current reference count should never be zero here */
428
429 if (!OriginalCount)
430 {
431 ACPI_WARNING ((AE_INFO,
432 "Obj %p, Reference Count was zero before increment\n",
433 Object));
434 }
435
436 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
437 "Obj %p Type %.2X Refs %.2X [Incremented]\n",
438 Object, Object->Common.Type, NewCount));
439 break;
440
441 case REF_DECREMENT:
442
443 /* The current reference count must be non-zero */
444
445 if (OriginalCount)
446 {
447 NewCount = OriginalCount - 1;
448 Object->Common.ReferenceCount = NewCount;
449 }
450
451 AcpiOsReleaseLock (AcpiGbl_ReferenceCountLock, LockFlags);
452
453 if (!OriginalCount)
454 {
455 ACPI_WARNING ((AE_INFO,
456 "Obj %p, Reference Count is already zero, cannot decrement\n",
457 Object));
458 }
459
460 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
461 "Obj %p Type %.2X Refs %.2X [Decremented]\n",
462 Object, Object->Common.Type, NewCount));
463
464 /* Actually delete the object on a reference count of zero */
465
466 if (NewCount == 0)
467 {
468 AcpiUtDeleteInternalObj (Object);
469 }
470 break;
471
472 default:
473
474 AcpiOsReleaseLock (AcpiGbl_ReferenceCountLock, LockFlags);
475 ACPI_ERROR ((AE_INFO, "Unknown Reference Count action (0x%X)",
476 Action));
477 return;
478 }
479
480 /*
481 * Sanity check the reference count, for debug purposes only.
482 * (A deleted object will have a huge reference count)
483 */
484 if (NewCount > ACPI_MAX_REFERENCE_COUNT)
485 {
486 ACPI_WARNING ((AE_INFO,
487 "Large Reference Count (0x%X) in object %p, Type=0x%.2X",
488 NewCount, Object, Object->Common.Type));
489 }
490 }
491
492
493 /*******************************************************************************
494 *
495 * FUNCTION: AcpiUtUpdateObjectReference
496 *
497 * PARAMETERS: Object - Increment ref count for this object
498 * and all sub-objects
499 * Action - Either REF_INCREMENT or REF_DECREMENT
500 *
501 * RETURN: Status
502 *
503 * DESCRIPTION: Increment the object reference count
504 *
505 * Object references are incremented when:
506 * 1) An object is attached to a Node (namespace object)
507 * 2) An object is copied (all subobjects must be incremented)
508 *
509 * Object references are decremented when:
510 * 1) An object is detached from an Node
511 *
512 ******************************************************************************/
513
514 ACPI_STATUS
515 AcpiUtUpdateObjectReference (
516 ACPI_OPERAND_OBJECT *Object,
517 UINT16 Action)
518 {
519 ACPI_STATUS Status = AE_OK;
520 ACPI_GENERIC_STATE *StateList = NULL;
521 ACPI_OPERAND_OBJECT *NextObject = NULL;
522 ACPI_OPERAND_OBJECT *PrevObject;
523 ACPI_GENERIC_STATE *State;
524 UINT32 i;
525
526
527 ACPI_FUNCTION_NAME (UtUpdateObjectReference);
528
529
530 while (Object)
531 {
532 /* Make sure that this isn't a namespace handle */
533
534 if (ACPI_GET_DESCRIPTOR_TYPE (Object) == ACPI_DESC_TYPE_NAMED)
535 {
536 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
537 "Object %p is NS handle\n", Object));
538 return (AE_OK);
539 }
540
541 /*
542 * All sub-objects must have their reference count incremented also.
543 * Different object types have different subobjects.
544 */
545 switch (Object->Common.Type)
546 {
547 case ACPI_TYPE_DEVICE:
548 case ACPI_TYPE_PROCESSOR:
549 case ACPI_TYPE_POWER:
550 case ACPI_TYPE_THERMAL:
551 /*
552 * Update the notify objects for these types (if present)
553 * Two lists, system and device notify handlers.
554 */
555 for (i = 0; i < ACPI_NUM_NOTIFY_TYPES; i++)
556 {
557 PrevObject = Object->CommonNotify.NotifyList[i];
558 while (PrevObject)
559 {
560 NextObject = PrevObject->Notify.Next[i];
561 AcpiUtUpdateRefCount (PrevObject, Action);
562 PrevObject = NextObject;
563 }
564 }
565 break;
566
567 case ACPI_TYPE_PACKAGE:
568 /*
569 * We must update all the sub-objects of the package,
570 * each of whom may have their own sub-objects.
571 */
572 for (i = 0; i < Object->Package.Count; i++)
573 {
574 /*
575 * Null package elements are legal and can be simply
576 * ignored.
577 */
578 NextObject = Object->Package.Elements[i];
579 if (!NextObject)
580 {
581 continue;
582 }
583
584 switch (NextObject->Common.Type)
585 {
586 case ACPI_TYPE_INTEGER:
587 case ACPI_TYPE_STRING:
588 case ACPI_TYPE_BUFFER:
589 /*
590 * For these very simple sub-objects, we can just
591 * update the reference count here and continue.
592 * Greatly increases performance of this operation.
593 */
594 AcpiUtUpdateRefCount (NextObject, Action);
595 break;
596
597 default:
598 /*
599 * For complex sub-objects, push them onto the stack
600 * for later processing (this eliminates recursion.)
601 */
602 Status = AcpiUtCreateUpdateStateAndPush (
603 NextObject, Action, &StateList);
604 if (ACPI_FAILURE (Status))
605 {
606 goto ErrorExit;
607 }
608 break;
609 }
610 }
611 NextObject = NULL;
612 break;
613
614 case ACPI_TYPE_BUFFER_FIELD:
615
616 NextObject = Object->BufferField.BufferObj;
617 break;
618
619 case ACPI_TYPE_LOCAL_REGION_FIELD:
620
621 NextObject = Object->Field.RegionObj;
622 break;
623
624 case ACPI_TYPE_LOCAL_BANK_FIELD:
625
626 NextObject = Object->BankField.BankObj;
627 Status = AcpiUtCreateUpdateStateAndPush (
628 Object->BankField.RegionObj, Action, &StateList);
629 if (ACPI_FAILURE (Status))
630 {
631 goto ErrorExit;
632 }
633 break;
634
635 case ACPI_TYPE_LOCAL_INDEX_FIELD:
636
637 NextObject = Object->IndexField.IndexObj;
638 Status = AcpiUtCreateUpdateStateAndPush (
639 Object->IndexField.DataObj, Action, &StateList);
640 if (ACPI_FAILURE (Status))
641 {
642 goto ErrorExit;
643 }
644 break;
645
646 case ACPI_TYPE_LOCAL_REFERENCE:
647 /*
648 * The target of an Index (a package, string, or buffer) or a named
649 * reference must track changes to the ref count of the index or
650 * target object.
651 */
652 if ((Object->Reference.Class == ACPI_REFCLASS_INDEX) ||
653 (Object->Reference.Class== ACPI_REFCLASS_NAME))
654 {
655 NextObject = Object->Reference.Object;
656 }
657 break;
658
659 case ACPI_TYPE_REGION:
660 default:
661
662 break; /* No subobjects for all other types */
663 }
664
665 /*
666 * Now we can update the count in the main object. This can only
667 * happen after we update the sub-objects in case this causes the
668 * main object to be deleted.
669 */
670 AcpiUtUpdateRefCount (Object, Action);
671 Object = NULL;
672
673 /* Move on to the next object to be updated */
674
675 if (NextObject)
676 {
677 Object = NextObject;
678 NextObject = NULL;
679 }
680 else if (StateList)
681 {
682 State = AcpiUtPopGenericState (&StateList);
683 Object = State->Update.Object;
684 AcpiUtDeleteGenericState (State);
685 }
686 }
687
688 return (AE_OK);
689
690
691 ErrorExit:
692
693 ACPI_EXCEPTION ((AE_INFO, Status,
694 "Could not update object reference count"));
695
696 /* Free any stacked Update State objects */
697
698 while (StateList)
699 {
700 State = AcpiUtPopGenericState (&StateList);
701 AcpiUtDeleteGenericState (State);
702 }
703
704 return (Status);
705 }
706
707
708 /*******************************************************************************
709 *
710 * FUNCTION: AcpiUtAddReference
711 *
712 * PARAMETERS: Object - Object whose reference count is to be
713 * incremented
714 *
715 * RETURN: None
716 *
717 * DESCRIPTION: Add one reference to an ACPI object
718 *
719 ******************************************************************************/
720
721 void
722 AcpiUtAddReference (
723 ACPI_OPERAND_OBJECT *Object)
724 {
725
726 ACPI_FUNCTION_NAME (UtAddReference);
727
728
729 /* Ensure that we have a valid object */
730
731 if (!AcpiUtValidInternalObject (Object))
732 {
733 return;
734 }
735
736 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
737 "Obj %p Current Refs=%X [To Be Incremented]\n",
738 Object, Object->Common.ReferenceCount));
739
740 /* Increment the reference count */
741
742 (void) AcpiUtUpdateObjectReference (Object, REF_INCREMENT);
743 return;
744 }
745
746
747 /*******************************************************************************
748 *
749 * FUNCTION: AcpiUtRemoveReference
750 *
751 * PARAMETERS: Object - Object whose ref count will be decremented
752 *
753 * RETURN: None
754 *
755 * DESCRIPTION: Decrement the reference count of an ACPI internal object
756 *
757 ******************************************************************************/
758
759 void
760 AcpiUtRemoveReference (
761 ACPI_OPERAND_OBJECT *Object)
762 {
763
764 ACPI_FUNCTION_NAME (UtRemoveReference);
765
766
767 /*
768 * Allow a NULL pointer to be passed in, just ignore it. This saves
769 * each caller from having to check. Also, ignore NS nodes.
770 */
771 if (!Object ||
772 (ACPI_GET_DESCRIPTOR_TYPE (Object) == ACPI_DESC_TYPE_NAMED))
773
774 {
775 return;
776 }
777
778 /* Ensure that we have a valid object */
779
780 if (!AcpiUtValidInternalObject (Object))
781 {
782 return;
783 }
784
785 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
786 "Obj %p Current Refs=%X [To Be Decremented]\n",
787 Object, Object->Common.ReferenceCount));
788
789 /*
790 * Decrement the reference count, and only actually delete the object
791 * if the reference count becomes 0. (Must also decrement the ref count
792 * of all subobjects!)
793 */
794 (void) AcpiUtUpdateObjectReference (Object, REF_DECREMENT);
795 return;
796 }