drivers/acpi/acpica/uttrack.c

   1 /******************************************************************************
   2  *
   3  * Module Name: uttrack - Memory allocation tracking routines (debug only)
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2013, 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 /*
  45  * These procedures are used for tracking memory leaks in the subsystem, and
  46  * they get compiled out when the ACPI_DBG_TRACK_ALLOCATIONS is not set.
  47  *
  48  * Each memory allocation is tracked via a doubly linked list. Each
  49  * element contains the caller's component, module name, function name, and
  50  * line number. acpi_ut_allocate and acpi_ut_allocate_zeroed call
  51  * acpi_ut_track_allocation to add an element to the list; deletion
  52  * occurs in the body of acpi_ut_free.
  53  */
  54
  55 #include <acpi/acpi.h>
  56 #include "accommon.h"
  57
  58 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
  59
  60 #define _COMPONENT          ACPI_UTILITIES
  61 ACPI_MODULE_NAME("uttrack")
  62
  63 /* Local prototypes */
  64 static struct acpi_debug_mem_block *acpi_ut_find_allocation(struct
  65                                                             acpi_debug_mem_block
  66                                                             *allocation);
  67
  68 static acpi_status
  69 acpi_ut_track_allocation(struct acpi_debug_mem_block *address,
  70                          acpi_size size,
  71                          u8 alloc_type,
  72                          u32 component, const char *module, u32 line);
  73
  74 static acpi_status
  75 acpi_ut_remove_allocation(struct acpi_debug_mem_block *address,
  76                           u32 component, const char *module, u32 line);
  77
  78 /*******************************************************************************
  79  *
  80  * FUNCTION:    acpi_ut_create_list
  81  *
  82  * PARAMETERS:  cache_name      - Ascii name for the cache
  83  *              object_size     - Size of each cached object
  84  *              return_cache    - Where the new cache object is returned
  85  *
  86  * RETURN:      Status
  87  *
  88  * DESCRIPTION: Create a local memory list for tracking purposed
  89  *
  90  ******************************************************************************/
  91
  92 acpi_status
  93 acpi_ut_create_list(char *list_name,
  94                     u16 object_size, struct acpi_memory_list **return_cache)
  95 {
  96         struct acpi_memory_list *cache;
  97
  98         cache = acpi_os_allocate(sizeof(struct acpi_memory_list));
  99         if (!cache) {
 100                 return (AE_NO_MEMORY);
 101         }
 102
 103         ACPI_MEMSET(cache, 0, sizeof(struct acpi_memory_list));
 104
 105         cache->list_name = list_name;
 106         cache->object_size = object_size;
 107
 108         *return_cache = cache;
 109         return (AE_OK);
 110 }
 111
 112 /*******************************************************************************
 113  *
 114  * FUNCTION:    acpi_ut_allocate_and_track
 115  *
 116  * PARAMETERS:  size                - Size of the allocation
 117  *              component           - Component type of caller
 118  *              module              - Source file name of caller
 119  *              line                - Line number of caller
 120  *
 121  * RETURN:      Address of the allocated memory on success, NULL on failure.
 122  *
 123  * DESCRIPTION: The subsystem's equivalent of malloc.
 124  *
 125  ******************************************************************************/
 126
 127 void *acpi_ut_allocate_and_track(acpi_size size,
 128                                  u32 component, const char *module, u32 line)
 129 {
 130         struct acpi_debug_mem_block *allocation;
 131         acpi_status status;
 132
 133         allocation =
 134             acpi_ut_allocate(size + sizeof(struct acpi_debug_mem_header),
 135                              component, module, line);
 136         if (!allocation) {
 137                 return (NULL);
 138         }
 139
 140         status = acpi_ut_track_allocation(allocation, size,
 141                                           ACPI_MEM_MALLOC, component, module,
 142                                           line);
 143         if (ACPI_FAILURE(status)) {
 144                 acpi_os_free(allocation);
 145                 return (NULL);
 146         }
 147
 148         acpi_gbl_global_list->total_allocated++;
 149         acpi_gbl_global_list->total_size += (u32)size;
 150         acpi_gbl_global_list->current_total_size += (u32)size;
 151         if (acpi_gbl_global_list->current_total_size >
 152             acpi_gbl_global_list->max_occupied) {
 153                 acpi_gbl_global_list->max_occupied =
 154                     acpi_gbl_global_list->current_total_size;
 155         }
 156
 157         return ((void *)&allocation->user_space);
 158 }
 159
 160 /*******************************************************************************
 161  *
 162  * FUNCTION:    acpi_ut_allocate_zeroed_and_track
 163  *
 164  * PARAMETERS:  size                - Size of the allocation
 165  *              component           - Component type of caller
 166  *              module              - Source file name of caller
 167  *              line                - Line number of caller
 168  *
 169  * RETURN:      Address of the allocated memory on success, NULL on failure.
 170  *
 171  * DESCRIPTION: Subsystem equivalent of calloc.
 172  *
 173  ******************************************************************************/
 174
 175 void *acpi_ut_allocate_zeroed_and_track(acpi_size size,
 176                                         u32 component,
 177                                         const char *module, u32 line)
 178 {
 179         struct acpi_debug_mem_block *allocation;
 180         acpi_status status;
 181
 182         allocation =
 183             acpi_ut_allocate_zeroed(size + sizeof(struct acpi_debug_mem_header),
 184                                     component, module, line);
 185         if (!allocation) {
 186
 187                 /* Report allocation error */
 188
 189                 ACPI_ERROR((module, line,
 190                             "Could not allocate size %u", (u32)size));
 191                 return (NULL);
 192         }
 193
 194         status = acpi_ut_track_allocation(allocation, size,
 195                                           ACPI_MEM_CALLOC, component, module,
 196                                           line);
 197         if (ACPI_FAILURE(status)) {
 198                 acpi_os_free(allocation);
 199                 return (NULL);
 200         }
 201
 202         acpi_gbl_global_list->total_allocated++;
 203         acpi_gbl_global_list->total_size += (u32)size;
 204         acpi_gbl_global_list->current_total_size += (u32)size;
 205         if (acpi_gbl_global_list->current_total_size >
 206             acpi_gbl_global_list->max_occupied) {
 207                 acpi_gbl_global_list->max_occupied =
 208                     acpi_gbl_global_list->current_total_size;
 209         }
 210
 211         return ((void *)&allocation->user_space);
 212 }
 213
 214 /*******************************************************************************
 215  *
 216  * FUNCTION:    acpi_ut_free_and_track
 217  *
 218  * PARAMETERS:  allocation          - Address of the memory to deallocate
 219  *              component           - Component type of caller
 220  *              module              - Source file name of caller
 221  *              line                - Line number of caller
 222  *
 223  * RETURN:      None
 224  *
 225  * DESCRIPTION: Frees the memory at Allocation
 226  *
 227  ******************************************************************************/
 228
 229 void
 230 acpi_ut_free_and_track(void *allocation,
 231                        u32 component, const char *module, u32 line)
 232 {
 233         struct acpi_debug_mem_block *debug_block;
 234         acpi_status status;
 235
 236         ACPI_FUNCTION_TRACE_PTR(ut_free, allocation);
 237
 238         if (NULL == allocation) {
 239                 ACPI_ERROR((module, line, "Attempt to delete a NULL address"));
 240
 241                 return_VOID;
 242         }
 243
 244         debug_block = ACPI_CAST_PTR(struct acpi_debug_mem_block,
 245                                     (((char *)allocation) -
 246                                      sizeof(struct acpi_debug_mem_header)));
 247
 248         acpi_gbl_global_list->total_freed++;
 249         acpi_gbl_global_list->current_total_size -= debug_block->size;
 250
 251         status = acpi_ut_remove_allocation(debug_block,
 252                                            component, module, line);
 253         if (ACPI_FAILURE(status)) {
 254                 ACPI_EXCEPTION((AE_INFO, status, "Could not free memory"));
 255         }
 256
 257         acpi_os_free(debug_block);
 258         ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p freed\n", allocation));
 259         return_VOID;
 260 }
 261
 262 /*******************************************************************************
 263  *
 264  * FUNCTION:    acpi_ut_find_allocation
 265  *
 266  * PARAMETERS:  allocation              - Address of allocated memory
 267  *
 268  * RETURN:      Three cases:
 269  *              1) List is empty, NULL is returned.
 270  *              2) Element was found. Returns Allocation parameter.
 271  *              3) Element was not found. Returns position where it should be
 272  *                  inserted into the list.
 273  *
 274  * DESCRIPTION: Searches for an element in the global allocation tracking list.
 275  *              If the element is not found, returns the location within the
 276  *              list where the element should be inserted.
 277  *
 278  *              Note: The list is ordered by larger-to-smaller addresses.
 279  *
 280  *              This global list is used to detect memory leaks in ACPICA as
 281  *              well as other issues such as an attempt to release the same
 282  *              internal object more than once. Although expensive as far
 283  *              as cpu time, this list is much more helpful for finding these
 284  *              types of issues than using memory leak detectors outside of
 285  *              the ACPICA code.
 286  *
 287  ******************************************************************************/
 288
 289 static struct acpi_debug_mem_block *acpi_ut_find_allocation(struct
 290                                                             acpi_debug_mem_block
 291                                                             *allocation)
 292 {
 293         struct acpi_debug_mem_block *element;
 294
 295         element = acpi_gbl_global_list->list_head;
 296         if (!element) {
 297                 return (NULL);
 298         }
 299
 300         /*
 301          * Search for the address.
 302          *
 303          * Note: List is ordered by larger-to-smaller addresses, on the
 304          * assumption that a new allocation usually has a larger address
 305          * than previous allocations.
 306          */
 307         while (element > allocation) {
 308
 309                 /* Check for end-of-list */
 310
 311                 if (!element->next) {
 312                         return (element);
 313                 }
 314
 315                 element = element->next;
 316         }
 317
 318         if (element == allocation) {
 319                 return (element);
 320         }
 321
 322         return (element->previous);
 323 }
 324
 325 /*******************************************************************************
 326  *
 327  * FUNCTION:    acpi_ut_track_allocation
 328  *
 329  * PARAMETERS:  allocation          - Address of allocated memory
 330  *              size                - Size of the allocation
 331  *              alloc_type          - MEM_MALLOC or MEM_CALLOC
 332  *              component           - Component type of caller
 333  *              module              - Source file name of caller
 334  *              line                - Line number of caller
 335  *
 336  * RETURN:      Status
 337  *
 338  * DESCRIPTION: Inserts an element into the global allocation tracking list.
 339  *
 340  ******************************************************************************/
 341
 342 static acpi_status
 343 acpi_ut_track_allocation(struct acpi_debug_mem_block *allocation,
 344                          acpi_size size,
 345                          u8 alloc_type,
 346                          u32 component, const char *module, u32 line)
 347 {
 348         struct acpi_memory_list *mem_list;
 349         struct acpi_debug_mem_block *element;
 350         acpi_status status = AE_OK;
 351
 352         ACPI_FUNCTION_TRACE_PTR(ut_track_allocation, allocation);
 353
 354         if (acpi_gbl_disable_mem_tracking) {
 355                 return_ACPI_STATUS(AE_OK);
 356         }
 357
 358         mem_list = acpi_gbl_global_list;
 359         status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY);
 360         if (ACPI_FAILURE(status)) {
 361                 return_ACPI_STATUS(status);
 362         }
 363
 364         /*
 365          * Search the global list for this address to make sure it is not
 366          * already present. This will catch several kinds of problems.
 367          */
 368         element = acpi_ut_find_allocation(allocation);
 369         if (element == allocation) {
 370                 ACPI_ERROR((AE_INFO,
 371                             "UtTrackAllocation: Allocation (%p) already present in global list!",
 372                             allocation));
 373                 goto unlock_and_exit;
 374         }
 375
 376         /* Fill in the instance data */
 377
 378         allocation->size = (u32)size;
 379         allocation->alloc_type = alloc_type;
 380         allocation->component = component;
 381         allocation->line = line;
 382
 383         ACPI_STRNCPY(allocation->module, module, ACPI_MAX_MODULE_NAME);
 384         allocation->module[ACPI_MAX_MODULE_NAME - 1] = 0;
 385
 386         if (!element) {
 387
 388                 /* Insert at list head */
 389
 390                 if (mem_list->list_head) {
 391                         ((struct acpi_debug_mem_block *)(mem_list->list_head))->
 392                             previous = allocation;
 393                 }
 394
 395                 allocation->next = mem_list->list_head;
 396                 allocation->previous = NULL;
 397
 398                 mem_list->list_head = allocation;
 399         } else {
 400                 /* Insert after element */
 401
 402                 allocation->next = element->next;
 403                 allocation->previous = element;
 404
 405                 if (element->next) {
 406                         (element->next)->previous = allocation;
 407                 }
 408
 409                 element->next = allocation;
 410         }
 411
 412       unlock_and_exit:
 413         status = acpi_ut_release_mutex(ACPI_MTX_MEMORY);
 414         return_ACPI_STATUS(status);
 415 }
 416
 417 /*******************************************************************************
 418  *
 419  * FUNCTION:    acpi_ut_remove_allocation
 420  *
 421  * PARAMETERS:  allocation          - Address of allocated memory
 422  *              component           - Component type of caller
 423  *              module              - Source file name of caller
 424  *              line                - Line number of caller
 425  *
 426  * RETURN:      Status
 427  *
 428  * DESCRIPTION: Deletes an element from the global allocation tracking list.
 429  *
 430  ******************************************************************************/
 431
 432 static acpi_status
 433 acpi_ut_remove_allocation(struct acpi_debug_mem_block *allocation,
 434                           u32 component, const char *module, u32 line)
 435 {
 436         struct acpi_memory_list *mem_list;
 437         acpi_status status;
 438
 439         ACPI_FUNCTION_NAME(ut_remove_allocation);
 440
 441         if (acpi_gbl_disable_mem_tracking) {
 442                 return (AE_OK);
 443         }
 444
 445         mem_list = acpi_gbl_global_list;
 446         if (NULL == mem_list->list_head) {
 447
 448                 /* No allocations! */
 449
 450                 ACPI_ERROR((module, line,
 451                             "Empty allocation list, nothing to free!"));
 452
 453                 return (AE_OK);
 454         }
 455
 456         status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY);
 457         if (ACPI_FAILURE(status)) {
 458                 return (status);
 459         }
 460
 461         /* Unlink */
 462
 463         if (allocation->previous) {
 464                 (allocation->previous)->next = allocation->next;
 465         } else {
 466                 mem_list->list_head = allocation->next;
 467         }
 468
 469         if (allocation->next) {
 470                 (allocation->next)->previous = allocation->previous;
 471         }
 472
 473         ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Freeing %p, size 0%X\n",
 474                           &allocation->user_space, allocation->size));
 475
 476         /* Mark the segment as deleted */
 477
 478         ACPI_MEMSET(&allocation->user_space, 0xEA, allocation->size);
 479
 480         status = acpi_ut_release_mutex(ACPI_MTX_MEMORY);
 481         return (status);
 482 }
 483
 484 /*******************************************************************************
 485  *
 486  * FUNCTION:    acpi_ut_dump_allocation_info
 487  *
 488  * PARAMETERS:  None
 489  *
 490  * RETURN:      None
 491  *
 492  * DESCRIPTION: Print some info about the outstanding allocations.
 493  *
 494  ******************************************************************************/
 495
 496 void acpi_ut_dump_allocation_info(void)
 497 {
 498 /*
 499         struct acpi_memory_list         *mem_list;
 500 */
 501
 502         ACPI_FUNCTION_TRACE(ut_dump_allocation_info);
 503
 504 /*
 505         ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 506                           ("%30s: %4d (%3d Kb)\n", "Current allocations",
 507                           mem_list->current_count,
 508                           ROUND_UP_TO_1K (mem_list->current_size)));
 509
 510         ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 511                           ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations",
 512                           mem_list->max_concurrent_count,
 513                           ROUND_UP_TO_1K (mem_list->max_concurrent_size)));
 514
 515         ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 516                           ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects",
 517                           running_object_count,
 518                           ROUND_UP_TO_1K (running_object_size)));
 519
 520         ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 521                           ("%30s: %4d (%3d Kb)\n", "Total (all) allocations",
 522                           running_alloc_count,
 523                           ROUND_UP_TO_1K (running_alloc_size)));
 524
 525         ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 526                           ("%30s: %4d (%3d Kb)\n", "Current Nodes",
 527                           acpi_gbl_current_node_count,
 528                           ROUND_UP_TO_1K (acpi_gbl_current_node_size)));
 529
 530         ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 531                           ("%30s: %4d (%3d Kb)\n", "Max Nodes",
 532                           acpi_gbl_max_concurrent_node_count,
 533                           ROUND_UP_TO_1K ((acpi_gbl_max_concurrent_node_count *
 534                                          sizeof (struct acpi_namespace_node)))));
 535 */
 536         return_VOID;
 537 }
 538
 539 /*******************************************************************************
 540  *
 541  * FUNCTION:    acpi_ut_dump_allocations
 542  *
 543  * PARAMETERS:  component           - Component(s) to dump info for.
 544  *              module              - Module to dump info for. NULL means all.
 545  *
 546  * RETURN:      None
 547  *
 548  * DESCRIPTION: Print a list of all outstanding allocations.
 549  *
 550  ******************************************************************************/
 551
 552 void acpi_ut_dump_allocations(u32 component, const char *module)
 553 {
 554         struct acpi_debug_mem_block *element;
 555         union acpi_descriptor *descriptor;
 556         u32 num_outstanding = 0;
 557         u8 descriptor_type;
 558
 559         ACPI_FUNCTION_TRACE(ut_dump_allocations);
 560
 561         if (acpi_gbl_disable_mem_tracking) {
 562                 return_VOID;
 563         }
 564
 565         /*
 566          * Walk the allocation list.
 567          */
 568         if (ACPI_FAILURE(acpi_ut_acquire_mutex(ACPI_MTX_MEMORY))) {
 569                 return_VOID;
 570         }
 571
 572         element = acpi_gbl_global_list->list_head;
 573         while (element) {
 574                 if ((element->component & component) &&
 575                     ((module == NULL)
 576                      || (0 == ACPI_STRCMP(module, element->module)))) {
 577                         descriptor =
 578                             ACPI_CAST_PTR(union acpi_descriptor,
 579                                           &element->user_space);
 580
 581                         if (element->size <
 582                             sizeof(struct acpi_common_descriptor)) {
 583                                 acpi_os_printf("%p Length 0x%04X %9.9s-%u "
 584                                                "[Not a Descriptor - too small]\n",
 585                                                descriptor, element->size,
 586                                                element->module, element->line);
 587                         } else {
 588                                 /* Ignore allocated objects that are in a cache */
 589
 590                                 if (ACPI_GET_DESCRIPTOR_TYPE(descriptor) !=
 591                                     ACPI_DESC_TYPE_CACHED) {
 592                                         acpi_os_printf
 593                                             ("%p Length 0x%04X %9.9s-%u [%s] ",
 594                                              descriptor, element->size,
 595                                              element->module, element->line,
 596                                              acpi_ut_get_descriptor_name
 597                                              (descriptor));
 598
 599                                         /* Validate the descriptor type using Type field and length */
 600
 601                                         descriptor_type = 0;    /* Not a valid descriptor type */
 602
 603                                         switch (ACPI_GET_DESCRIPTOR_TYPE
 604                                                 (descriptor)) {
 605                                         case ACPI_DESC_TYPE_OPERAND:
 606                                                 if (element->size ==
 607                                                     sizeof(union
 608                                                            acpi_operand_object))
 609                                                 {
 610                                                         descriptor_type =
 611                                                             ACPI_DESC_TYPE_OPERAND;
 612                                                 }
 613                                                 break;
 614
 615                                         case ACPI_DESC_TYPE_PARSER:
 616                                                 if (element->size ==
 617                                                     sizeof(union
 618                                                            acpi_parse_object)) {
 619                                                         descriptor_type =
 620                                                             ACPI_DESC_TYPE_PARSER;
 621                                                 }
 622                                                 break;
 623
 624                                         case ACPI_DESC_TYPE_NAMED:
 625                                                 if (element->size ==
 626                                                     sizeof(struct
 627                                                            acpi_namespace_node))
 628                                                 {
 629                                                         descriptor_type =
 630                                                             ACPI_DESC_TYPE_NAMED;
 631                                                 }
 632                                                 break;
 633
 634                                         default:
 635                                                 break;
 636                                         }
 637
 638                                         /* Display additional info for the major descriptor types */
 639
 640                                         switch (descriptor_type) {
 641                                         case ACPI_DESC_TYPE_OPERAND:
 642                                                 acpi_os_printf
 643                                                     ("%12.12s RefCount 0x%04X\n",
 644                                                      acpi_ut_get_type_name
 645                                                      (descriptor->object.common.
 646                                                       type),
 647                                                      descriptor->object.common.
 648                                                      reference_count);
 649                                                 break;
 650
 651                                         case ACPI_DESC_TYPE_PARSER:
 652                                                 acpi_os_printf
 653                                                     ("AmlOpcode 0x%04hX\n",
 654                                                      descriptor->op.asl.
 655                                                      aml_opcode);
 656                                                 break;
 657
 658                                         case ACPI_DESC_TYPE_NAMED:
 659                                                 acpi_os_printf("%4.4s\n",
 660                                                                acpi_ut_get_node_name
 661                                                                (&descriptor->
 662                                                                 node));
 663                                                 break;
 664
 665                                         default:
 666                                                 acpi_os_printf("\n");
 667                                                 break;
 668                                         }
 669                                 }
 670                         }
 671
 672                         num_outstanding++;
 673                 }
 674
 675                 element = element->next;
 676         }
 677
 678         (void)acpi_ut_release_mutex(ACPI_MTX_MEMORY);
 679
 680         /* Print summary */
 681
 682         if (!num_outstanding) {
 683                 ACPI_INFO((AE_INFO, "No outstanding allocations"));
 684         } else {
 685                 ACPI_ERROR((AE_INFO, "%u(0x%X) Outstanding allocations",
 686                             num_outstanding, num_outstanding));
 687         }
 688
 689         return_VOID;
 690 }
 691
 692 #endif                          /* ACPI_DBG_TRACK_ALLOCATIONS */