utdelete.c revision 1.1.1.2.4.2
1 1.1.1.2.4.2 rmind /******************************************************************************* 2 1.1.1.2.4.2 rmind * 3 1.1.1.2.4.2 rmind * Module Name: utdelete - object deletion and reference count utilities 4 1.1.1.2.4.2 rmind * 5 1.1.1.2.4.2 rmind ******************************************************************************/ 6 1.1.1.2.4.2 rmind 7 1.1.1.2.4.2 rmind /* 8 1.1.1.2.4.2 rmind * Copyright (C) 2000 - 2011, Intel Corp. 9 1.1.1.2.4.2 rmind * All rights reserved. 10 1.1.1.2.4.2 rmind * 11 1.1.1.2.4.2 rmind * Redistribution and use in source and binary forms, with or without 12 1.1.1.2.4.2 rmind * modification, are permitted provided that the following conditions 13 1.1.1.2.4.2 rmind * are met: 14 1.1.1.2.4.2 rmind * 1. Redistributions of source code must retain the above copyright 15 1.1.1.2.4.2 rmind * notice, this list of conditions, and the following disclaimer, 16 1.1.1.2.4.2 rmind * without modification. 17 1.1.1.2.4.2 rmind * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 1.1.1.2.4.2 rmind * substantially similar to the "NO WARRANTY" disclaimer below 19 1.1.1.2.4.2 rmind * ("Disclaimer") and any redistribution must be conditioned upon 20 1.1.1.2.4.2 rmind * including a substantially similar Disclaimer requirement for further 21 1.1.1.2.4.2 rmind * binary redistribution. 22 1.1.1.2.4.2 rmind * 3. Neither the names of the above-listed copyright holders nor the names 23 1.1.1.2.4.2 rmind * of any contributors may be used to endorse or promote products derived 24 1.1.1.2.4.2 rmind * from this software without specific prior written permission. 25 1.1.1.2.4.2 rmind * 26 1.1.1.2.4.2 rmind * Alternatively, this software may be distributed under the terms of the 27 1.1.1.2.4.2 rmind * GNU General Public License ("GPL") version 2 as published by the Free 28 1.1.1.2.4.2 rmind * Software Foundation. 29 1.1.1.2.4.2 rmind * 30 1.1.1.2.4.2 rmind * NO WARRANTY 31 1.1.1.2.4.2 rmind * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 1.1.1.2.4.2 rmind * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 1.1.1.2.4.2 rmind * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 1.1.1.2.4.2 rmind * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 1.1.1.2.4.2 rmind * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 1.1.1.2.4.2 rmind * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 1.1.1.2.4.2 rmind * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 1.1.1.2.4.2 rmind * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 1.1.1.2.4.2 rmind * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 1.1.1.2.4.2 rmind * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 1.1.1.2.4.2 rmind * POSSIBILITY OF SUCH DAMAGES. 42 1.1.1.2.4.2 rmind */ 43 1.1.1.2.4.2 rmind 44 1.1.1.2.4.2 rmind #define __UTDELETE_C__ 45 1.1.1.2.4.2 rmind 46 1.1.1.2.4.2 rmind #include "acpi.h" 47 1.1.1.2.4.2 rmind #include "accommon.h" 48 1.1.1.2.4.2 rmind #include "acinterp.h" 49 1.1.1.2.4.2 rmind #include "acnamesp.h" 50 1.1.1.2.4.2 rmind #include "acevents.h" 51 1.1.1.2.4.2 rmind 52 1.1.1.2.4.2 rmind 53 1.1.1.2.4.2 rmind #define _COMPONENT ACPI_UTILITIES 54 1.1.1.2.4.2 rmind ACPI_MODULE_NAME ("utdelete") 55 1.1.1.2.4.2 rmind 56 1.1.1.2.4.2 rmind /* Local prototypes */ 57 1.1.1.2.4.2 rmind 58 1.1.1.2.4.2 rmind static void 59 1.1.1.2.4.2 rmind AcpiUtDeleteInternalObj ( 60 1.1.1.2.4.2 rmind ACPI_OPERAND_OBJECT *Object); 61 1.1.1.2.4.2 rmind 62 1.1.1.2.4.2 rmind static void 63 1.1.1.2.4.2 rmind AcpiUtUpdateRefCount ( 64 1.1.1.2.4.2 rmind ACPI_OPERAND_OBJECT *Object, 65 1.1.1.2.4.2 rmind UINT32 Action); 66 1.1.1.2.4.2 rmind 67 1.1.1.2.4.2 rmind 68 1.1.1.2.4.2 rmind /******************************************************************************* 69 1.1.1.2.4.2 rmind * 70 1.1.1.2.4.2 rmind * FUNCTION: AcpiUtDeleteInternalObj 71 1.1.1.2.4.2 rmind * 72 1.1.1.2.4.2 rmind * PARAMETERS: Object - Object to be deleted 73 1.1.1.2.4.2 rmind * 74 1.1.1.2.4.2 rmind * RETURN: None 75 1.1.1.2.4.2 rmind * 76 1.1.1.2.4.2 rmind * DESCRIPTION: Low level object deletion, after reference counts have been 77 1.1.1.2.4.2 rmind * updated (All reference counts, including sub-objects!) 78 1.1.1.2.4.2 rmind * 79 1.1.1.2.4.2 rmind ******************************************************************************/ 80 1.1.1.2.4.2 rmind 81 1.1.1.2.4.2 rmind static void 82 1.1.1.2.4.2 rmind AcpiUtDeleteInternalObj ( 83 1.1.1.2.4.2 rmind ACPI_OPERAND_OBJECT *Object) 84 1.1.1.2.4.2 rmind { 85 1.1.1.2.4.2 rmind void *ObjPointer = NULL; 86 1.1.1.2.4.2 rmind ACPI_OPERAND_OBJECT *HandlerDesc; 87 1.1.1.2.4.2 rmind ACPI_OPERAND_OBJECT *SecondDesc; 88 1.1.1.2.4.2 rmind ACPI_OPERAND_OBJECT *NextDesc; 89 1.1.1.2.4.2 rmind ACPI_OPERAND_OBJECT **LastObjPtr; 90 1.1.1.2.4.2 rmind 91 1.1.1.2.4.2 rmind 92 1.1.1.2.4.2 rmind ACPI_FUNCTION_TRACE_PTR (UtDeleteInternalObj, Object); 93 1.1.1.2.4.2 rmind 94 1.1.1.2.4.2 rmind 95 1.1.1.2.4.2 rmind if (!Object) 96 1.1.1.2.4.2 rmind { 97 1.1.1.2.4.2 rmind return_VOID; 98 1.1.1.2.4.2 rmind } 99 1.1.1.2.4.2 rmind 100 1.1.1.2.4.2 rmind /* 101 1.1.1.2.4.2 rmind * Must delete or free any pointers within the object that are not 102 1.1.1.2.4.2 rmind * actual ACPI objects (for example, a raw buffer pointer). 103 1.1.1.2.4.2 rmind */ 104 1.1.1.2.4.2 rmind switch (Object->Common.Type) 105 1.1.1.2.4.2 rmind { 106 1.1.1.2.4.2 rmind case ACPI_TYPE_STRING: 107 1.1.1.2.4.2 rmind 108 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "**** String %p, ptr %p\n", 109 1.1.1.2.4.2 rmind Object, Object->String.Pointer)); 110 1.1.1.2.4.2 rmind 111 1.1.1.2.4.2 rmind /* Free the actual string buffer */ 112 1.1.1.2.4.2 rmind 113 1.1.1.2.4.2 rmind if (!(Object->Common.Flags & AOPOBJ_STATIC_POINTER)) 114 1.1.1.2.4.2 rmind { 115 1.1.1.2.4.2 rmind /* But only if it is NOT a pointer into an ACPI table */ 116 1.1.1.2.4.2 rmind 117 1.1.1.2.4.2 rmind ObjPointer = Object->String.Pointer; 118 1.1.1.2.4.2 rmind } 119 1.1.1.2.4.2 rmind break; 120 1.1.1.2.4.2 rmind 121 1.1.1.2.4.2 rmind 122 1.1.1.2.4.2 rmind case ACPI_TYPE_BUFFER: 123 1.1.1.2.4.2 rmind 124 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "**** Buffer %p, ptr %p\n", 125 1.1.1.2.4.2 rmind Object, Object->Buffer.Pointer)); 126 1.1.1.2.4.2 rmind 127 1.1.1.2.4.2 rmind /* Free the actual buffer */ 128 1.1.1.2.4.2 rmind 129 1.1.1.2.4.2 rmind if (!(Object->Common.Flags & AOPOBJ_STATIC_POINTER)) 130 1.1.1.2.4.2 rmind { 131 1.1.1.2.4.2 rmind /* But only if it is NOT a pointer into an ACPI table */ 132 1.1.1.2.4.2 rmind 133 1.1.1.2.4.2 rmind ObjPointer = Object->Buffer.Pointer; 134 1.1.1.2.4.2 rmind } 135 1.1.1.2.4.2 rmind break; 136 1.1.1.2.4.2 rmind 137 1.1.1.2.4.2 rmind 138 1.1.1.2.4.2 rmind case ACPI_TYPE_PACKAGE: 139 1.1.1.2.4.2 rmind 140 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, " **** Package of count %X\n", 141 1.1.1.2.4.2 rmind Object->Package.Count)); 142 1.1.1.2.4.2 rmind 143 1.1.1.2.4.2 rmind /* 144 1.1.1.2.4.2 rmind * Elements of the package are not handled here, they are deleted 145 1.1.1.2.4.2 rmind * separately 146 1.1.1.2.4.2 rmind */ 147 1.1.1.2.4.2 rmind 148 1.1.1.2.4.2 rmind /* Free the (variable length) element pointer array */ 149 1.1.1.2.4.2 rmind 150 1.1.1.2.4.2 rmind ObjPointer = Object->Package.Elements; 151 1.1.1.2.4.2 rmind break; 152 1.1.1.2.4.2 rmind 153 1.1.1.2.4.2 rmind 154 1.1.1.2.4.2 rmind /* 155 1.1.1.2.4.2 rmind * These objects have a possible list of notify handlers. 156 1.1.1.2.4.2 rmind * Device object also may have a GPE block. 157 1.1.1.2.4.2 rmind */ 158 1.1.1.2.4.2 rmind case ACPI_TYPE_DEVICE: 159 1.1.1.2.4.2 rmind 160 1.1.1.2.4.2 rmind if (Object->Device.GpeBlock) 161 1.1.1.2.4.2 rmind { 162 1.1.1.2.4.2 rmind (void) AcpiEvDeleteGpeBlock (Object->Device.GpeBlock); 163 1.1.1.2.4.2 rmind } 164 1.1.1.2.4.2 rmind 165 1.1.1.2.4.2 rmind /*lint -fallthrough */ 166 1.1.1.2.4.2 rmind 167 1.1.1.2.4.2 rmind case ACPI_TYPE_PROCESSOR: 168 1.1.1.2.4.2 rmind case ACPI_TYPE_THERMAL: 169 1.1.1.2.4.2 rmind 170 1.1.1.2.4.2 rmind /* Walk the notify handler list for this object */ 171 1.1.1.2.4.2 rmind 172 1.1.1.2.4.2 rmind HandlerDesc = Object->CommonNotify.Handler; 173 1.1.1.2.4.2 rmind while (HandlerDesc) 174 1.1.1.2.4.2 rmind { 175 1.1.1.2.4.2 rmind NextDesc = HandlerDesc->AddressSpace.Next; 176 1.1.1.2.4.2 rmind AcpiUtRemoveReference (HandlerDesc); 177 1.1.1.2.4.2 rmind HandlerDesc = NextDesc; 178 1.1.1.2.4.2 rmind } 179 1.1.1.2.4.2 rmind break; 180 1.1.1.2.4.2 rmind 181 1.1.1.2.4.2 rmind 182 1.1.1.2.4.2 rmind case ACPI_TYPE_MUTEX: 183 1.1.1.2.4.2 rmind 184 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 185 1.1.1.2.4.2 rmind "***** Mutex %p, OS Mutex %p\n", 186 1.1.1.2.4.2 rmind Object, Object->Mutex.OsMutex)); 187 1.1.1.2.4.2 rmind 188 1.1.1.2.4.2 rmind if (Object == AcpiGbl_GlobalLockMutex) 189 1.1.1.2.4.2 rmind { 190 1.1.1.2.4.2 rmind /* Global Lock has extra semaphore */ 191 1.1.1.2.4.2 rmind 192 1.1.1.2.4.2 rmind (void) AcpiOsDeleteSemaphore (AcpiGbl_GlobalLockSemaphore); 193 1.1.1.2.4.2 rmind AcpiGbl_GlobalLockSemaphore = NULL; 194 1.1.1.2.4.2 rmind 195 1.1.1.2.4.2 rmind AcpiOsDeleteMutex (Object->Mutex.OsMutex); 196 1.1.1.2.4.2 rmind AcpiGbl_GlobalLockMutex = NULL; 197 1.1.1.2.4.2 rmind } 198 1.1.1.2.4.2 rmind else 199 1.1.1.2.4.2 rmind { 200 1.1.1.2.4.2 rmind AcpiExUnlinkMutex (Object); 201 1.1.1.2.4.2 rmind AcpiOsDeleteMutex (Object->Mutex.OsMutex); 202 1.1.1.2.4.2 rmind } 203 1.1.1.2.4.2 rmind break; 204 1.1.1.2.4.2 rmind 205 1.1.1.2.4.2 rmind 206 1.1.1.2.4.2 rmind case ACPI_TYPE_EVENT: 207 1.1.1.2.4.2 rmind 208 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 209 1.1.1.2.4.2 rmind "***** Event %p, OS Semaphore %p\n", 210 1.1.1.2.4.2 rmind Object, Object->Event.OsSemaphore)); 211 1.1.1.2.4.2 rmind 212 1.1.1.2.4.2 rmind (void) AcpiOsDeleteSemaphore (Object->Event.OsSemaphore); 213 1.1.1.2.4.2 rmind Object->Event.OsSemaphore = NULL; 214 1.1.1.2.4.2 rmind break; 215 1.1.1.2.4.2 rmind 216 1.1.1.2.4.2 rmind 217 1.1.1.2.4.2 rmind case ACPI_TYPE_METHOD: 218 1.1.1.2.4.2 rmind 219 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 220 1.1.1.2.4.2 rmind "***** Method %p\n", Object)); 221 1.1.1.2.4.2 rmind 222 1.1.1.2.4.2 rmind /* Delete the method mutex if it exists */ 223 1.1.1.2.4.2 rmind 224 1.1.1.2.4.2 rmind if (Object->Method.Mutex) 225 1.1.1.2.4.2 rmind { 226 1.1.1.2.4.2 rmind AcpiOsDeleteMutex (Object->Method.Mutex->Mutex.OsMutex); 227 1.1.1.2.4.2 rmind AcpiUtDeleteObjectDesc (Object->Method.Mutex); 228 1.1.1.2.4.2 rmind Object->Method.Mutex = NULL; 229 1.1.1.2.4.2 rmind } 230 1.1.1.2.4.2 rmind break; 231 1.1.1.2.4.2 rmind 232 1.1.1.2.4.2 rmind 233 1.1.1.2.4.2 rmind case ACPI_TYPE_REGION: 234 1.1.1.2.4.2 rmind 235 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 236 1.1.1.2.4.2 rmind "***** Region %p\n", Object)); 237 1.1.1.2.4.2 rmind 238 1.1.1.2.4.2 rmind SecondDesc = AcpiNsGetSecondaryObject (Object); 239 1.1.1.2.4.2 rmind if (SecondDesc) 240 1.1.1.2.4.2 rmind { 241 1.1.1.2.4.2 rmind /* 242 1.1.1.2.4.2 rmind * Free the RegionContext if and only if the handler is one of the 243 1.1.1.2.4.2 rmind * default handlers -- and therefore, we created the context object 244 1.1.1.2.4.2 rmind * locally, it was not created by an external caller. 245 1.1.1.2.4.2 rmind */ 246 1.1.1.2.4.2 rmind HandlerDesc = Object->Region.Handler; 247 1.1.1.2.4.2 rmind if (HandlerDesc) 248 1.1.1.2.4.2 rmind { 249 1.1.1.2.4.2 rmind NextDesc = HandlerDesc->AddressSpace.RegionList; 250 1.1.1.2.4.2 rmind LastObjPtr = &HandlerDesc->AddressSpace.RegionList; 251 1.1.1.2.4.2 rmind 252 1.1.1.2.4.2 rmind /* Remove the region object from the handler's list */ 253 1.1.1.2.4.2 rmind 254 1.1.1.2.4.2 rmind while (NextDesc) 255 1.1.1.2.4.2 rmind { 256 1.1.1.2.4.2 rmind if (NextDesc == Object) 257 1.1.1.2.4.2 rmind { 258 1.1.1.2.4.2 rmind *LastObjPtr = NextDesc->Region.Next; 259 1.1.1.2.4.2 rmind break; 260 1.1.1.2.4.2 rmind } 261 1.1.1.2.4.2 rmind 262 1.1.1.2.4.2 rmind /* Walk the linked list of handler */ 263 1.1.1.2.4.2 rmind 264 1.1.1.2.4.2 rmind LastObjPtr = &NextDesc->Region.Next; 265 1.1.1.2.4.2 rmind NextDesc = NextDesc->Region.Next; 266 1.1.1.2.4.2 rmind } 267 1.1.1.2.4.2 rmind 268 1.1.1.2.4.2 rmind if (HandlerDesc->AddressSpace.HandlerFlags & 269 1.1.1.2.4.2 rmind ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) 270 1.1.1.2.4.2 rmind { 271 1.1.1.2.4.2 rmind /* Deactivate region and free region context */ 272 1.1.1.2.4.2 rmind 273 1.1.1.2.4.2 rmind if (HandlerDesc->AddressSpace.Setup) 274 1.1.1.2.4.2 rmind { 275 1.1.1.2.4.2 rmind (void) HandlerDesc->AddressSpace.Setup (Object, 276 1.1.1.2.4.2 rmind ACPI_REGION_DEACTIVATE, 277 1.1.1.2.4.2 rmind HandlerDesc->AddressSpace.Context, 278 1.1.1.2.4.2 rmind &SecondDesc->Extra.RegionContext); 279 1.1.1.2.4.2 rmind } 280 1.1.1.2.4.2 rmind } 281 1.1.1.2.4.2 rmind 282 1.1.1.2.4.2 rmind AcpiUtRemoveReference (HandlerDesc); 283 1.1.1.2.4.2 rmind } 284 1.1.1.2.4.2 rmind 285 1.1.1.2.4.2 rmind /* Now we can free the Extra object */ 286 1.1.1.2.4.2 rmind 287 1.1.1.2.4.2 rmind AcpiUtDeleteObjectDesc (SecondDesc); 288 1.1.1.2.4.2 rmind } 289 1.1.1.2.4.2 rmind break; 290 1.1.1.2.4.2 rmind 291 1.1.1.2.4.2 rmind 292 1.1.1.2.4.2 rmind case ACPI_TYPE_BUFFER_FIELD: 293 1.1.1.2.4.2 rmind 294 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 295 1.1.1.2.4.2 rmind "***** Buffer Field %p\n", Object)); 296 1.1.1.2.4.2 rmind 297 1.1.1.2.4.2 rmind SecondDesc = AcpiNsGetSecondaryObject (Object); 298 1.1.1.2.4.2 rmind if (SecondDesc) 299 1.1.1.2.4.2 rmind { 300 1.1.1.2.4.2 rmind AcpiUtDeleteObjectDesc (SecondDesc); 301 1.1.1.2.4.2 rmind } 302 1.1.1.2.4.2 rmind break; 303 1.1.1.2.4.2 rmind 304 1.1.1.2.4.2 rmind 305 1.1.1.2.4.2 rmind case ACPI_TYPE_LOCAL_BANK_FIELD: 306 1.1.1.2.4.2 rmind 307 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 308 1.1.1.2.4.2 rmind "***** Bank Field %p\n", Object)); 309 1.1.1.2.4.2 rmind 310 1.1.1.2.4.2 rmind SecondDesc = AcpiNsGetSecondaryObject (Object); 311 1.1.1.2.4.2 rmind if (SecondDesc) 312 1.1.1.2.4.2 rmind { 313 1.1.1.2.4.2 rmind AcpiUtDeleteObjectDesc (SecondDesc); 314 1.1.1.2.4.2 rmind } 315 1.1.1.2.4.2 rmind break; 316 1.1.1.2.4.2 rmind 317 1.1.1.2.4.2 rmind 318 1.1.1.2.4.2 rmind default: 319 1.1.1.2.4.2 rmind break; 320 1.1.1.2.4.2 rmind } 321 1.1.1.2.4.2 rmind 322 1.1.1.2.4.2 rmind /* Free any allocated memory (pointer within the object) found above */ 323 1.1.1.2.4.2 rmind 324 1.1.1.2.4.2 rmind if (ObjPointer) 325 1.1.1.2.4.2 rmind { 326 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Deleting Object Subptr %p\n", 327 1.1.1.2.4.2 rmind ObjPointer)); 328 1.1.1.2.4.2 rmind ACPI_FREE (ObjPointer); 329 1.1.1.2.4.2 rmind } 330 1.1.1.2.4.2 rmind 331 1.1.1.2.4.2 rmind /* Now the object can be safely deleted */ 332 1.1.1.2.4.2 rmind 333 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Deleting Object %p [%s]\n", 334 1.1.1.2.4.2 rmind Object, AcpiUtGetObjectTypeName (Object))); 335 1.1.1.2.4.2 rmind 336 1.1.1.2.4.2 rmind AcpiUtDeleteObjectDesc (Object); 337 1.1.1.2.4.2 rmind return_VOID; 338 1.1.1.2.4.2 rmind } 339 1.1.1.2.4.2 rmind 340 1.1.1.2.4.2 rmind 341 1.1.1.2.4.2 rmind /******************************************************************************* 342 1.1.1.2.4.2 rmind * 343 1.1.1.2.4.2 rmind * FUNCTION: AcpiUtDeleteInternalObjectList 344 1.1.1.2.4.2 rmind * 345 1.1.1.2.4.2 rmind * PARAMETERS: ObjList - Pointer to the list to be deleted 346 1.1.1.2.4.2 rmind * 347 1.1.1.2.4.2 rmind * RETURN: None 348 1.1.1.2.4.2 rmind * 349 1.1.1.2.4.2 rmind * DESCRIPTION: This function deletes an internal object list, including both 350 1.1.1.2.4.2 rmind * simple objects and package objects 351 1.1.1.2.4.2 rmind * 352 1.1.1.2.4.2 rmind ******************************************************************************/ 353 1.1.1.2.4.2 rmind 354 1.1.1.2.4.2 rmind void 355 1.1.1.2.4.2 rmind AcpiUtDeleteInternalObjectList ( 356 1.1.1.2.4.2 rmind ACPI_OPERAND_OBJECT **ObjList) 357 1.1.1.2.4.2 rmind { 358 1.1.1.2.4.2 rmind ACPI_OPERAND_OBJECT **InternalObj; 359 1.1.1.2.4.2 rmind 360 1.1.1.2.4.2 rmind 361 1.1.1.2.4.2 rmind ACPI_FUNCTION_TRACE (UtDeleteInternalObjectList); 362 1.1.1.2.4.2 rmind 363 1.1.1.2.4.2 rmind 364 1.1.1.2.4.2 rmind /* Walk the null-terminated internal list */ 365 1.1.1.2.4.2 rmind 366 1.1.1.2.4.2 rmind for (InternalObj = ObjList; *InternalObj; InternalObj++) 367 1.1.1.2.4.2 rmind { 368 1.1.1.2.4.2 rmind AcpiUtRemoveReference (*InternalObj); 369 1.1.1.2.4.2 rmind } 370 1.1.1.2.4.2 rmind 371 1.1.1.2.4.2 rmind /* Free the combined parameter pointer list and object array */ 372 1.1.1.2.4.2 rmind 373 1.1.1.2.4.2 rmind ACPI_FREE (ObjList); 374 1.1.1.2.4.2 rmind return_VOID; 375 1.1.1.2.4.2 rmind } 376 1.1.1.2.4.2 rmind 377 1.1.1.2.4.2 rmind 378 1.1.1.2.4.2 rmind /******************************************************************************* 379 1.1.1.2.4.2 rmind * 380 1.1.1.2.4.2 rmind * FUNCTION: AcpiUtUpdateRefCount 381 1.1.1.2.4.2 rmind * 382 1.1.1.2.4.2 rmind * PARAMETERS: Object - Object whose ref count is to be updated 383 1.1.1.2.4.2 rmind * Action - What to do 384 1.1.1.2.4.2 rmind * 385 1.1.1.2.4.2 rmind * RETURN: New ref count 386 1.1.1.2.4.2 rmind * 387 1.1.1.2.4.2 rmind * DESCRIPTION: Modify the ref count and return it. 388 1.1.1.2.4.2 rmind * 389 1.1.1.2.4.2 rmind ******************************************************************************/ 390 1.1.1.2.4.2 rmind 391 1.1.1.2.4.2 rmind static void 392 1.1.1.2.4.2 rmind AcpiUtUpdateRefCount ( 393 1.1.1.2.4.2 rmind ACPI_OPERAND_OBJECT *Object, 394 1.1.1.2.4.2 rmind UINT32 Action) 395 1.1.1.2.4.2 rmind { 396 1.1.1.2.4.2 rmind UINT16 Count; 397 1.1.1.2.4.2 rmind UINT16 NewCount; 398 1.1.1.2.4.2 rmind 399 1.1.1.2.4.2 rmind 400 1.1.1.2.4.2 rmind ACPI_FUNCTION_NAME (UtUpdateRefCount); 401 1.1.1.2.4.2 rmind 402 1.1.1.2.4.2 rmind 403 1.1.1.2.4.2 rmind if (!Object) 404 1.1.1.2.4.2 rmind { 405 1.1.1.2.4.2 rmind return; 406 1.1.1.2.4.2 rmind } 407 1.1.1.2.4.2 rmind 408 1.1.1.2.4.2 rmind Count = Object->Common.ReferenceCount; 409 1.1.1.2.4.2 rmind NewCount = Count; 410 1.1.1.2.4.2 rmind 411 1.1.1.2.4.2 rmind /* 412 1.1.1.2.4.2 rmind * Perform the reference count action (increment, decrement, force delete) 413 1.1.1.2.4.2 rmind */ 414 1.1.1.2.4.2 rmind switch (Action) 415 1.1.1.2.4.2 rmind { 416 1.1.1.2.4.2 rmind case REF_INCREMENT: 417 1.1.1.2.4.2 rmind 418 1.1.1.2.4.2 rmind NewCount++; 419 1.1.1.2.4.2 rmind Object->Common.ReferenceCount = NewCount; 420 1.1.1.2.4.2 rmind 421 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 422 1.1.1.2.4.2 rmind "Obj %p Refs=%X, [Incremented]\n", 423 1.1.1.2.4.2 rmind Object, NewCount)); 424 1.1.1.2.4.2 rmind break; 425 1.1.1.2.4.2 rmind 426 1.1.1.2.4.2 rmind case REF_DECREMENT: 427 1.1.1.2.4.2 rmind 428 1.1.1.2.4.2 rmind if (Count < 1) 429 1.1.1.2.4.2 rmind { 430 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 431 1.1.1.2.4.2 rmind "Obj %p Refs=%X, can't decrement! (Set to 0)\n", 432 1.1.1.2.4.2 rmind Object, NewCount)); 433 1.1.1.2.4.2 rmind 434 1.1.1.2.4.2 rmind NewCount = 0; 435 1.1.1.2.4.2 rmind } 436 1.1.1.2.4.2 rmind else 437 1.1.1.2.4.2 rmind { 438 1.1.1.2.4.2 rmind NewCount--; 439 1.1.1.2.4.2 rmind 440 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 441 1.1.1.2.4.2 rmind "Obj %p Refs=%X, [Decremented]\n", 442 1.1.1.2.4.2 rmind Object, NewCount)); 443 1.1.1.2.4.2 rmind } 444 1.1.1.2.4.2 rmind 445 1.1.1.2.4.2 rmind if (Object->Common.Type == ACPI_TYPE_METHOD) 446 1.1.1.2.4.2 rmind { 447 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 448 1.1.1.2.4.2 rmind "Method Obj %p Refs=%X, [Decremented]\n", Object, NewCount)); 449 1.1.1.2.4.2 rmind } 450 1.1.1.2.4.2 rmind 451 1.1.1.2.4.2 rmind Object->Common.ReferenceCount = NewCount; 452 1.1.1.2.4.2 rmind if (NewCount == 0) 453 1.1.1.2.4.2 rmind { 454 1.1.1.2.4.2 rmind AcpiUtDeleteInternalObj (Object); 455 1.1.1.2.4.2 rmind } 456 1.1.1.2.4.2 rmind break; 457 1.1.1.2.4.2 rmind 458 1.1.1.2.4.2 rmind case REF_FORCE_DELETE: 459 1.1.1.2.4.2 rmind 460 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 461 1.1.1.2.4.2 rmind "Obj %p Refs=%X, Force delete! (Set to 0)\n", Object, Count)); 462 1.1.1.2.4.2 rmind 463 1.1.1.2.4.2 rmind NewCount = 0; 464 1.1.1.2.4.2 rmind Object->Common.ReferenceCount = NewCount; 465 1.1.1.2.4.2 rmind AcpiUtDeleteInternalObj (Object); 466 1.1.1.2.4.2 rmind break; 467 1.1.1.2.4.2 rmind 468 1.1.1.2.4.2 rmind default: 469 1.1.1.2.4.2 rmind 470 1.1.1.2.4.2 rmind ACPI_ERROR ((AE_INFO, "Unknown action (0x%X)", Action)); 471 1.1.1.2.4.2 rmind break; 472 1.1.1.2.4.2 rmind } 473 1.1.1.2.4.2 rmind 474 1.1.1.2.4.2 rmind /* 475 1.1.1.2.4.2 rmind * Sanity check the reference count, for debug purposes only. 476 1.1.1.2.4.2 rmind * (A deleted object will have a huge reference count) 477 1.1.1.2.4.2 rmind */ 478 1.1.1.2.4.2 rmind if (Count > ACPI_MAX_REFERENCE_COUNT) 479 1.1.1.2.4.2 rmind { 480 1.1.1.2.4.2 rmind ACPI_WARNING ((AE_INFO, 481 1.1.1.2.4.2 rmind "Large Reference Count (0x%X) in object %p", Count, Object)); 482 1.1.1.2.4.2 rmind } 483 1.1.1.2.4.2 rmind } 484 1.1.1.2.4.2 rmind 485 1.1.1.2.4.2 rmind 486 1.1.1.2.4.2 rmind /******************************************************************************* 487 1.1.1.2.4.2 rmind * 488 1.1.1.2.4.2 rmind * FUNCTION: AcpiUtUpdateObjectReference 489 1.1.1.2.4.2 rmind * 490 1.1.1.2.4.2 rmind * PARAMETERS: Object - Increment ref count for this object 491 1.1.1.2.4.2 rmind * and all sub-objects 492 1.1.1.2.4.2 rmind * Action - Either REF_INCREMENT or REF_DECREMENT or 493 1.1.1.2.4.2 rmind * REF_FORCE_DELETE 494 1.1.1.2.4.2 rmind * 495 1.1.1.2.4.2 rmind * RETURN: Status 496 1.1.1.2.4.2 rmind * 497 1.1.1.2.4.2 rmind * DESCRIPTION: Increment the object reference count 498 1.1.1.2.4.2 rmind * 499 1.1.1.2.4.2 rmind * Object references are incremented when: 500 1.1.1.2.4.2 rmind * 1) An object is attached to a Node (namespace object) 501 1.1.1.2.4.2 rmind * 2) An object is copied (all subobjects must be incremented) 502 1.1.1.2.4.2 rmind * 503 1.1.1.2.4.2 rmind * Object references are decremented when: 504 1.1.1.2.4.2 rmind * 1) An object is detached from an Node 505 1.1.1.2.4.2 rmind * 506 1.1.1.2.4.2 rmind ******************************************************************************/ 507 1.1.1.2.4.2 rmind 508 1.1.1.2.4.2 rmind ACPI_STATUS 509 1.1.1.2.4.2 rmind AcpiUtUpdateObjectReference ( 510 1.1.1.2.4.2 rmind ACPI_OPERAND_OBJECT *Object, 511 1.1.1.2.4.2 rmind UINT16 Action) 512 1.1.1.2.4.2 rmind { 513 1.1.1.2.4.2 rmind ACPI_STATUS Status = AE_OK; 514 1.1.1.2.4.2 rmind ACPI_GENERIC_STATE *StateList = NULL; 515 1.1.1.2.4.2 rmind ACPI_OPERAND_OBJECT *NextObject = NULL; 516 1.1.1.2.4.2 rmind ACPI_GENERIC_STATE *State; 517 1.1.1.2.4.2 rmind UINT32 i; 518 1.1.1.2.4.2 rmind 519 1.1.1.2.4.2 rmind 520 1.1.1.2.4.2 rmind ACPI_FUNCTION_TRACE_PTR (UtUpdateObjectReference, Object); 521 1.1.1.2.4.2 rmind 522 1.1.1.2.4.2 rmind 523 1.1.1.2.4.2 rmind while (Object) 524 1.1.1.2.4.2 rmind { 525 1.1.1.2.4.2 rmind /* Make sure that this isn't a namespace handle */ 526 1.1.1.2.4.2 rmind 527 1.1.1.2.4.2 rmind if (ACPI_GET_DESCRIPTOR_TYPE (Object) == ACPI_DESC_TYPE_NAMED) 528 1.1.1.2.4.2 rmind { 529 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 530 1.1.1.2.4.2 rmind "Object %p is NS handle\n", Object)); 531 1.1.1.2.4.2 rmind return_ACPI_STATUS (AE_OK); 532 1.1.1.2.4.2 rmind } 533 1.1.1.2.4.2 rmind 534 1.1.1.2.4.2 rmind /* 535 1.1.1.2.4.2 rmind * All sub-objects must have their reference count incremented also. 536 1.1.1.2.4.2 rmind * Different object types have different subobjects. 537 1.1.1.2.4.2 rmind */ 538 1.1.1.2.4.2 rmind switch (Object->Common.Type) 539 1.1.1.2.4.2 rmind { 540 1.1.1.2.4.2 rmind case ACPI_TYPE_DEVICE: 541 1.1.1.2.4.2 rmind case ACPI_TYPE_PROCESSOR: 542 1.1.1.2.4.2 rmind case ACPI_TYPE_POWER: 543 1.1.1.2.4.2 rmind case ACPI_TYPE_THERMAL: 544 1.1.1.2.4.2 rmind 545 1.1.1.2.4.2 rmind /* Update the notify objects for these types (if present) */ 546 1.1.1.2.4.2 rmind 547 1.1.1.2.4.2 rmind AcpiUtUpdateRefCount (Object->CommonNotify.SystemNotify, Action); 548 1.1.1.2.4.2 rmind AcpiUtUpdateRefCount (Object->CommonNotify.DeviceNotify, Action); 549 1.1.1.2.4.2 rmind break; 550 1.1.1.2.4.2 rmind 551 1.1.1.2.4.2 rmind case ACPI_TYPE_PACKAGE: 552 1.1.1.2.4.2 rmind /* 553 1.1.1.2.4.2 rmind * We must update all the sub-objects of the package, 554 1.1.1.2.4.2 rmind * each of whom may have their own sub-objects. 555 1.1.1.2.4.2 rmind */ 556 1.1.1.2.4.2 rmind for (i = 0; i < Object->Package.Count; i++) 557 1.1.1.2.4.2 rmind { 558 1.1.1.2.4.2 rmind /* 559 1.1.1.2.4.2 rmind * Push each element onto the stack for later processing. 560 1.1.1.2.4.2 rmind * Note: There can be null elements within the package, 561 1.1.1.2.4.2 rmind * these are simply ignored 562 1.1.1.2.4.2 rmind */ 563 1.1.1.2.4.2 rmind Status = AcpiUtCreateUpdateStateAndPush ( 564 1.1.1.2.4.2 rmind Object->Package.Elements[i], Action, &StateList); 565 1.1.1.2.4.2 rmind if (ACPI_FAILURE (Status)) 566 1.1.1.2.4.2 rmind { 567 1.1.1.2.4.2 rmind goto ErrorExit; 568 1.1.1.2.4.2 rmind } 569 1.1.1.2.4.2 rmind } 570 1.1.1.2.4.2 rmind break; 571 1.1.1.2.4.2 rmind 572 1.1.1.2.4.2 rmind case ACPI_TYPE_BUFFER_FIELD: 573 1.1.1.2.4.2 rmind 574 1.1.1.2.4.2 rmind NextObject = Object->BufferField.BufferObj; 575 1.1.1.2.4.2 rmind break; 576 1.1.1.2.4.2 rmind 577 1.1.1.2.4.2 rmind case ACPI_TYPE_LOCAL_REGION_FIELD: 578 1.1.1.2.4.2 rmind 579 1.1.1.2.4.2 rmind NextObject = Object->Field.RegionObj; 580 1.1.1.2.4.2 rmind break; 581 1.1.1.2.4.2 rmind 582 1.1.1.2.4.2 rmind case ACPI_TYPE_LOCAL_BANK_FIELD: 583 1.1.1.2.4.2 rmind 584 1.1.1.2.4.2 rmind NextObject = Object->BankField.BankObj; 585 1.1.1.2.4.2 rmind Status = AcpiUtCreateUpdateStateAndPush ( 586 1.1.1.2.4.2 rmind Object->BankField.RegionObj, Action, &StateList); 587 1.1.1.2.4.2 rmind if (ACPI_FAILURE (Status)) 588 1.1.1.2.4.2 rmind { 589 1.1.1.2.4.2 rmind goto ErrorExit; 590 1.1.1.2.4.2 rmind } 591 1.1.1.2.4.2 rmind break; 592 1.1.1.2.4.2 rmind 593 1.1.1.2.4.2 rmind case ACPI_TYPE_LOCAL_INDEX_FIELD: 594 1.1.1.2.4.2 rmind 595 1.1.1.2.4.2 rmind NextObject = Object->IndexField.IndexObj; 596 1.1.1.2.4.2 rmind Status = AcpiUtCreateUpdateStateAndPush ( 597 1.1.1.2.4.2 rmind Object->IndexField.DataObj, Action, &StateList); 598 1.1.1.2.4.2 rmind if (ACPI_FAILURE (Status)) 599 1.1.1.2.4.2 rmind { 600 1.1.1.2.4.2 rmind goto ErrorExit; 601 1.1.1.2.4.2 rmind } 602 1.1.1.2.4.2 rmind break; 603 1.1.1.2.4.2 rmind 604 1.1.1.2.4.2 rmind case ACPI_TYPE_LOCAL_REFERENCE: 605 1.1.1.2.4.2 rmind /* 606 1.1.1.2.4.2 rmind * The target of an Index (a package, string, or buffer) or a named 607 1.1.1.2.4.2 rmind * reference must track changes to the ref count of the index or 608 1.1.1.2.4.2 rmind * target object. 609 1.1.1.2.4.2 rmind */ 610 1.1.1.2.4.2 rmind if ((Object->Reference.Class == ACPI_REFCLASS_INDEX) || 611 1.1.1.2.4.2 rmind (Object->Reference.Class== ACPI_REFCLASS_NAME)) 612 1.1.1.2.4.2 rmind { 613 1.1.1.2.4.2 rmind NextObject = Object->Reference.Object; 614 1.1.1.2.4.2 rmind } 615 1.1.1.2.4.2 rmind break; 616 1.1.1.2.4.2 rmind 617 1.1.1.2.4.2 rmind case ACPI_TYPE_REGION: 618 1.1.1.2.4.2 rmind default: 619 1.1.1.2.4.2 rmind break; /* No subobjects for all other types */ 620 1.1.1.2.4.2 rmind } 621 1.1.1.2.4.2 rmind 622 1.1.1.2.4.2 rmind /* 623 1.1.1.2.4.2 rmind * Now we can update the count in the main object. This can only 624 1.1.1.2.4.2 rmind * happen after we update the sub-objects in case this causes the 625 1.1.1.2.4.2 rmind * main object to be deleted. 626 1.1.1.2.4.2 rmind */ 627 1.1.1.2.4.2 rmind AcpiUtUpdateRefCount (Object, Action); 628 1.1.1.2.4.2 rmind Object = NULL; 629 1.1.1.2.4.2 rmind 630 1.1.1.2.4.2 rmind /* Move on to the next object to be updated */ 631 1.1.1.2.4.2 rmind 632 1.1.1.2.4.2 rmind if (NextObject) 633 1.1.1.2.4.2 rmind { 634 1.1.1.2.4.2 rmind Object = NextObject; 635 1.1.1.2.4.2 rmind NextObject = NULL; 636 1.1.1.2.4.2 rmind } 637 1.1.1.2.4.2 rmind else if (StateList) 638 1.1.1.2.4.2 rmind { 639 1.1.1.2.4.2 rmind State = AcpiUtPopGenericState (&StateList); 640 1.1.1.2.4.2 rmind Object = State->Update.Object; 641 1.1.1.2.4.2 rmind AcpiUtDeleteGenericState (State); 642 1.1.1.2.4.2 rmind } 643 1.1.1.2.4.2 rmind } 644 1.1.1.2.4.2 rmind 645 1.1.1.2.4.2 rmind return_ACPI_STATUS (AE_OK); 646 1.1.1.2.4.2 rmind 647 1.1.1.2.4.2 rmind 648 1.1.1.2.4.2 rmind ErrorExit: 649 1.1.1.2.4.2 rmind 650 1.1.1.2.4.2 rmind ACPI_EXCEPTION ((AE_INFO, Status, 651 1.1.1.2.4.2 rmind "Could not update object reference count")); 652 1.1.1.2.4.2 rmind 653 1.1.1.2.4.2 rmind /* Free any stacked Update State objects */ 654 1.1.1.2.4.2 rmind 655 1.1.1.2.4.2 rmind while (StateList) 656 1.1.1.2.4.2 rmind { 657 1.1.1.2.4.2 rmind State = AcpiUtPopGenericState (&StateList); 658 1.1.1.2.4.2 rmind AcpiUtDeleteGenericState (State); 659 1.1.1.2.4.2 rmind } 660 1.1.1.2.4.2 rmind 661 1.1.1.2.4.2 rmind return_ACPI_STATUS (Status); 662 1.1.1.2.4.2 rmind } 663 1.1.1.2.4.2 rmind 664 1.1.1.2.4.2 rmind 665 1.1.1.2.4.2 rmind /******************************************************************************* 666 1.1.1.2.4.2 rmind * 667 1.1.1.2.4.2 rmind * FUNCTION: AcpiUtAddReference 668 1.1.1.2.4.2 rmind * 669 1.1.1.2.4.2 rmind * PARAMETERS: Object - Object whose reference count is to be 670 1.1.1.2.4.2 rmind * incremented 671 1.1.1.2.4.2 rmind * 672 1.1.1.2.4.2 rmind * RETURN: None 673 1.1.1.2.4.2 rmind * 674 1.1.1.2.4.2 rmind * DESCRIPTION: Add one reference to an ACPI object 675 1.1.1.2.4.2 rmind * 676 1.1.1.2.4.2 rmind ******************************************************************************/ 677 1.1.1.2.4.2 rmind 678 1.1.1.2.4.2 rmind void 679 1.1.1.2.4.2 rmind AcpiUtAddReference ( 680 1.1.1.2.4.2 rmind ACPI_OPERAND_OBJECT *Object) 681 1.1.1.2.4.2 rmind { 682 1.1.1.2.4.2 rmind 683 1.1.1.2.4.2 rmind ACPI_FUNCTION_TRACE_PTR (UtAddReference, Object); 684 1.1.1.2.4.2 rmind 685 1.1.1.2.4.2 rmind 686 1.1.1.2.4.2 rmind /* Ensure that we have a valid object */ 687 1.1.1.2.4.2 rmind 688 1.1.1.2.4.2 rmind if (!AcpiUtValidInternalObject (Object)) 689 1.1.1.2.4.2 rmind { 690 1.1.1.2.4.2 rmind return_VOID; 691 1.1.1.2.4.2 rmind } 692 1.1.1.2.4.2 rmind 693 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 694 1.1.1.2.4.2 rmind "Obj %p Current Refs=%X [To Be Incremented]\n", 695 1.1.1.2.4.2 rmind Object, Object->Common.ReferenceCount)); 696 1.1.1.2.4.2 rmind 697 1.1.1.2.4.2 rmind /* Increment the reference count */ 698 1.1.1.2.4.2 rmind 699 1.1.1.2.4.2 rmind (void) AcpiUtUpdateObjectReference (Object, REF_INCREMENT); 700 1.1.1.2.4.2 rmind return_VOID; 701 1.1.1.2.4.2 rmind } 702 1.1.1.2.4.2 rmind 703 1.1.1.2.4.2 rmind 704 1.1.1.2.4.2 rmind /******************************************************************************* 705 1.1.1.2.4.2 rmind * 706 1.1.1.2.4.2 rmind * FUNCTION: AcpiUtRemoveReference 707 1.1.1.2.4.2 rmind * 708 1.1.1.2.4.2 rmind * PARAMETERS: Object - Object whose ref count will be decremented 709 1.1.1.2.4.2 rmind * 710 1.1.1.2.4.2 rmind * RETURN: None 711 1.1.1.2.4.2 rmind * 712 1.1.1.2.4.2 rmind * DESCRIPTION: Decrement the reference count of an ACPI internal object 713 1.1.1.2.4.2 rmind * 714 1.1.1.2.4.2 rmind ******************************************************************************/ 715 1.1.1.2.4.2 rmind 716 1.1.1.2.4.2 rmind void 717 1.1.1.2.4.2 rmind AcpiUtRemoveReference ( 718 1.1.1.2.4.2 rmind ACPI_OPERAND_OBJECT *Object) 719 1.1.1.2.4.2 rmind { 720 1.1.1.2.4.2 rmind 721 1.1.1.2.4.2 rmind ACPI_FUNCTION_TRACE_PTR (UtRemoveReference, Object); 722 1.1.1.2.4.2 rmind 723 1.1.1.2.4.2 rmind 724 1.1.1.2.4.2 rmind /* 725 1.1.1.2.4.2 rmind * Allow a NULL pointer to be passed in, just ignore it. This saves 726 1.1.1.2.4.2 rmind * each caller from having to check. Also, ignore NS nodes. 727 1.1.1.2.4.2 rmind * 728 1.1.1.2.4.2 rmind */ 729 1.1.1.2.4.2 rmind if (!Object || 730 1.1.1.2.4.2 rmind (ACPI_GET_DESCRIPTOR_TYPE (Object) == ACPI_DESC_TYPE_NAMED)) 731 1.1.1.2.4.2 rmind 732 1.1.1.2.4.2 rmind { 733 1.1.1.2.4.2 rmind return_VOID; 734 1.1.1.2.4.2 rmind } 735 1.1.1.2.4.2 rmind 736 1.1.1.2.4.2 rmind /* Ensure that we have a valid object */ 737 1.1.1.2.4.2 rmind 738 1.1.1.2.4.2 rmind if (!AcpiUtValidInternalObject (Object)) 739 1.1.1.2.4.2 rmind { 740 1.1.1.2.4.2 rmind return_VOID; 741 1.1.1.2.4.2 rmind } 742 1.1.1.2.4.2 rmind 743 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 744 1.1.1.2.4.2 rmind "Obj %p Current Refs=%X [To Be Decremented]\n", 745 1.1.1.2.4.2 rmind Object, Object->Common.ReferenceCount)); 746 1.1.1.2.4.2 rmind 747 1.1.1.2.4.2 rmind /* 748 1.1.1.2.4.2 rmind * Decrement the reference count, and only actually delete the object 749 1.1.1.2.4.2 rmind * if the reference count becomes 0. (Must also decrement the ref count 750 1.1.1.2.4.2 rmind * of all subobjects!) 751 1.1.1.2.4.2 rmind */ 752 1.1.1.2.4.2 rmind (void) AcpiUtUpdateObjectReference (Object, REF_DECREMENT); 753 1.1.1.2.4.2 rmind return_VOID; 754 1.1.1.2.4.2 rmind } 755 1.1.1.2.4.2 rmind 756 1.1.1.2.4.2 rmind 757
Indexes created Mon Oct 13 08:09:50 GMT 2025