Commit | Line | Data |
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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
9ad19ac4 | 3 | * Module Name: dswload - Dispatcher first pass namespace load callbacks |
1da177e4 LT |
4 | * |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
25f044e6 | 8 | * Copyright (C) 2000 - 2013, Intel Corp. |
1da177e4 LT |
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 | ||
1da177e4 | 44 | #include <acpi/acpi.h> |
e2f7a777 LB |
45 | #include "accommon.h" |
46 | #include "acparser.h" | |
47 | #include "amlcode.h" | |
48 | #include "acdispat.h" | |
49 | #include "acinterp.h" | |
50 | #include "acnamesp.h" | |
1da177e4 | 51 | |
73459f73 | 52 | #ifdef ACPI_ASL_COMPILER |
56324c10 | 53 | #include "acdisasm.h" |
1da177e4 LT |
54 | #endif |
55 | ||
56 | #define _COMPONENT ACPI_DISPATCHER | |
4be44fcd | 57 | ACPI_MODULE_NAME("dswload") |
1da177e4 LT |
58 | |
59 | /******************************************************************************* | |
60 | * | |
61 | * FUNCTION: acpi_ds_init_callbacks | |
62 | * | |
63 | * PARAMETERS: walk_state - Current state of the parse tree walk | |
64 | * pass_number - 1, 2, or 3 | |
65 | * | |
66 | * RETURN: Status | |
67 | * | |
68 | * DESCRIPTION: Init walk state callbacks | |
69 | * | |
70 | ******************************************************************************/ | |
1da177e4 | 71 | acpi_status |
4be44fcd | 72 | acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number) |
1da177e4 LT |
73 | { |
74 | ||
75 | switch (pass_number) { | |
76 | case 1: | |
4be44fcd LB |
77 | walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | |
78 | ACPI_PARSE_DELETE_TREE; | |
1da177e4 LT |
79 | walk_state->descending_callback = acpi_ds_load1_begin_op; |
80 | walk_state->ascending_callback = acpi_ds_load1_end_op; | |
81 | break; | |
82 | ||
83 | case 2: | |
4be44fcd LB |
84 | walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | |
85 | ACPI_PARSE_DELETE_TREE; | |
1da177e4 LT |
86 | walk_state->descending_callback = acpi_ds_load2_begin_op; |
87 | walk_state->ascending_callback = acpi_ds_load2_end_op; | |
88 | break; | |
89 | ||
90 | case 3: | |
91 | #ifndef ACPI_NO_METHOD_EXECUTION | |
4be44fcd LB |
92 | walk_state->parse_flags |= ACPI_PARSE_EXECUTE | |
93 | ACPI_PARSE_DELETE_TREE; | |
1da177e4 LT |
94 | walk_state->descending_callback = acpi_ds_exec_begin_op; |
95 | walk_state->ascending_callback = acpi_ds_exec_end_op; | |
96 | #endif | |
97 | break; | |
98 | ||
99 | default: | |
100 | return (AE_BAD_PARAMETER); | |
101 | } | |
102 | ||
103 | return (AE_OK); | |
104 | } | |
105 | ||
1da177e4 LT |
106 | /******************************************************************************* |
107 | * | |
108 | * FUNCTION: acpi_ds_load1_begin_op | |
109 | * | |
110 | * PARAMETERS: walk_state - Current state of the parse tree walk | |
44f6c012 | 111 | * out_op - Where to return op if a new one is created |
1da177e4 LT |
112 | * |
113 | * RETURN: Status | |
114 | * | |
115 | * DESCRIPTION: Descending callback used during the loading of ACPI tables. | |
116 | * | |
117 | ******************************************************************************/ | |
118 | ||
119 | acpi_status | |
4be44fcd LB |
120 | acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, |
121 | union acpi_parse_object ** out_op) | |
1da177e4 | 122 | { |
4be44fcd LB |
123 | union acpi_parse_object *op; |
124 | struct acpi_namespace_node *node; | |
125 | acpi_status status; | |
126 | acpi_object_type object_type; | |
127 | char *path; | |
128 | u32 flags; | |
1da177e4 | 129 | |
b229cf92 | 130 | ACPI_FUNCTION_TRACE(ds_load1_begin_op); |
1da177e4 LT |
131 | |
132 | op = walk_state->op; | |
4be44fcd LB |
133 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, |
134 | walk_state)); | |
1da177e4 LT |
135 | |
136 | /* We are only interested in opcodes that have an associated name */ | |
137 | ||
138 | if (op) { | |
139 | if (!(walk_state->op_info->flags & AML_NAMED)) { | |
1da177e4 | 140 | *out_op = op; |
28f55ebc | 141 | return_ACPI_STATUS(AE_OK); |
1da177e4 LT |
142 | } |
143 | ||
144 | /* Check if this object has already been installed in the namespace */ | |
145 | ||
146 | if (op->common.node) { | |
147 | *out_op = op; | |
28f55ebc | 148 | return_ACPI_STATUS(AE_OK); |
1da177e4 LT |
149 | } |
150 | } | |
151 | ||
4be44fcd | 152 | path = acpi_ps_get_next_namestring(&walk_state->parser_state); |
1da177e4 LT |
153 | |
154 | /* Map the raw opcode into an internal object type */ | |
155 | ||
156 | object_type = walk_state->op_info->object_type; | |
157 | ||
4be44fcd LB |
158 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
159 | "State=%p Op=%p [%s]\n", walk_state, op, | |
160 | acpi_ut_get_type_name(object_type))); | |
1da177e4 LT |
161 | |
162 | switch (walk_state->opcode) { | |
163 | case AML_SCOPE_OP: | |
164 | ||
165 | /* | |
166 | * The target name of the Scope() operator must exist at this point so | |
167 | * that we can actually open the scope to enter new names underneath it. | |
168 | * Allow search-to-root for single namesegs. | |
169 | */ | |
4be44fcd LB |
170 | status = |
171 | acpi_ns_lookup(walk_state->scope_info, path, object_type, | |
172 | ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, | |
173 | walk_state, &(node)); | |
73459f73 | 174 | #ifdef ACPI_ASL_COMPILER |
1da177e4 LT |
175 | if (status == AE_NOT_FOUND) { |
176 | /* | |
177 | * Table disassembly: | |
967440e3 | 178 | * Target of Scope() not found. Generate an External for it, and |
1da177e4 LT |
179 | * insert the name into the namespace. |
180 | */ | |
56324c10 LZ |
181 | acpi_dm_add_to_external_list(op, path, ACPI_TYPE_DEVICE, |
182 | 0); | |
4be44fcd LB |
183 | status = |
184 | acpi_ns_lookup(walk_state->scope_info, path, | |
185 | object_type, ACPI_IMODE_LOAD_PASS1, | |
186 | ACPI_NS_SEARCH_PARENT, walk_state, | |
958dd242 | 187 | &node); |
1da177e4 LT |
188 | } |
189 | #endif | |
4be44fcd | 190 | if (ACPI_FAILURE(status)) { |
b8e4d893 | 191 | ACPI_ERROR_NAMESPACE(path, status); |
28f55ebc | 192 | return_ACPI_STATUS(status); |
1da177e4 LT |
193 | } |
194 | ||
195 | /* | |
196 | * Check to make sure that the target is | |
197 | * one of the opcodes that actually opens a scope | |
198 | */ | |
199 | switch (node->type) { | |
15f0c0d1 | 200 | case ACPI_TYPE_ANY: |
4be44fcd | 201 | case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ |
1da177e4 LT |
202 | case ACPI_TYPE_DEVICE: |
203 | case ACPI_TYPE_POWER: | |
204 | case ACPI_TYPE_PROCESSOR: | |
205 | case ACPI_TYPE_THERMAL: | |
206 | ||
207 | /* These are acceptable types */ | |
208 | break; | |
209 | ||
210 | case ACPI_TYPE_INTEGER: | |
211 | case ACPI_TYPE_STRING: | |
212 | case ACPI_TYPE_BUFFER: | |
213 | ||
214 | /* | |
f2cb1251 BM |
215 | * These types we will allow, but we will change the type. |
216 | * This enables some existing code of the form: | |
1da177e4 LT |
217 | * |
218 | * Name (DEB, 0) | |
219 | * Scope (DEB) { ... } | |
220 | * | |
f2cb1251 BM |
221 | * Note: silently change the type here. On the second pass, |
222 | * we will report a warning | |
1da177e4 | 223 | */ |
4be44fcd | 224 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
f2cb1251 BM |
225 | "Type override - [%4.4s] had invalid type (%s) " |
226 | "for Scope operator, changed to type ANY\n", | |
227 | acpi_ut_get_node_name(node), | |
4be44fcd | 228 | acpi_ut_get_type_name(node->type))); |
1da177e4 LT |
229 | |
230 | node->type = ACPI_TYPE_ANY; | |
231 | walk_state->scope_info->common.value = ACPI_TYPE_ANY; | |
232 | break; | |
233 | ||
28f538b5 BM |
234 | case ACPI_TYPE_METHOD: |
235 | ||
236 | /* | |
237 | * Allow scope change to root during execution of module-level | |
238 | * code. Root is typed METHOD during this time. | |
239 | */ | |
240 | if ((node == acpi_gbl_root_node) && | |
241 | (walk_state-> | |
242 | parse_flags & ACPI_PARSE_MODULE_LEVEL)) { | |
243 | break; | |
244 | } | |
245 | ||
246 | /*lint -fallthrough */ | |
247 | ||
1da177e4 LT |
248 | default: |
249 | ||
250 | /* All other types are an error */ | |
251 | ||
b8e4d893 | 252 | ACPI_ERROR((AE_INFO, |
f2cb1251 BM |
253 | "Invalid type (%s) for target of " |
254 | "Scope operator [%4.4s] (Cannot override)", | |
255 | acpi_ut_get_type_name(node->type), | |
256 | acpi_ut_get_node_name(node))); | |
1da177e4 | 257 | |
28f55ebc | 258 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
1da177e4 LT |
259 | } |
260 | break; | |
261 | ||
1da177e4 | 262 | default: |
1da177e4 | 263 | /* |
44f6c012 RM |
264 | * For all other named opcodes, we will enter the name into |
265 | * the namespace. | |
1da177e4 LT |
266 | * |
267 | * Setup the search flags. | |
268 | * Since we are entering a name into the namespace, we do not want to | |
269 | * enable the search-to-root upsearch. | |
270 | * | |
271 | * There are only two conditions where it is acceptable that the name | |
272 | * already exists: | |
273 | * 1) the Scope() operator can reopen a scoping object that was | |
274 | * previously defined (Scope, Method, Device, etc.) | |
275 | * 2) Whenever we are parsing a deferred opcode (op_region, Buffer, | |
276 | * buffer_field, or Package), the name of the object is already | |
277 | * in the namespace. | |
278 | */ | |
279 | if (walk_state->deferred_node) { | |
52fc0b02 | 280 | |
1da177e4 LT |
281 | /* This name is already in the namespace, get the node */ |
282 | ||
283 | node = walk_state->deferred_node; | |
284 | status = AE_OK; | |
285 | break; | |
286 | } | |
287 | ||
28f55ebc BM |
288 | /* |
289 | * If we are executing a method, do not create any namespace objects | |
290 | * during the load phase, only during execution. | |
291 | */ | |
292 | if (walk_state->method_node) { | |
293 | node = NULL; | |
294 | status = AE_OK; | |
295 | break; | |
296 | } | |
297 | ||
1da177e4 LT |
298 | flags = ACPI_NS_NO_UPSEARCH; |
299 | if ((walk_state->opcode != AML_SCOPE_OP) && | |
4be44fcd | 300 | (!(walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP))) { |
1da177e4 | 301 | flags |= ACPI_NS_ERROR_IF_FOUND; |
4be44fcd LB |
302 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
303 | "[%s] Cannot already exist\n", | |
304 | acpi_ut_get_type_name(object_type))); | |
305 | } else { | |
306 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, | |
307 | "[%s] Both Find or Create allowed\n", | |
308 | acpi_ut_get_type_name(object_type))); | |
1da177e4 LT |
309 | } |
310 | ||
311 | /* | |
967440e3 BM |
312 | * Enter the named type into the internal namespace. We enter the name |
313 | * as we go downward in the parse tree. Any necessary subobjects that | |
44f6c012 RM |
314 | * involve arguments to the opcode must be created as we go back up the |
315 | * parse tree later. | |
1da177e4 | 316 | */ |
4be44fcd LB |
317 | status = |
318 | acpi_ns_lookup(walk_state->scope_info, path, object_type, | |
319 | ACPI_IMODE_LOAD_PASS1, flags, walk_state, | |
958dd242 | 320 | &node); |
4be44fcd | 321 | if (ACPI_FAILURE(status)) { |
958dd242 BM |
322 | if (status == AE_ALREADY_EXISTS) { |
323 | ||
324 | /* The name already exists in this scope */ | |
325 | ||
326 | if (node->flags & ANOBJ_IS_EXTERNAL) { | |
327 | /* | |
328 | * Allow one create on an object or segment that was | |
329 | * previously declared External | |
330 | */ | |
331 | node->flags &= ~ANOBJ_IS_EXTERNAL; | |
332 | node->type = (u8) object_type; | |
333 | ||
334 | /* Just retyped a node, probably will need to open a scope */ | |
335 | ||
336 | if (acpi_ns_opens_scope(object_type)) { | |
337 | status = | |
338 | acpi_ds_scope_stack_push | |
339 | (node, object_type, | |
340 | walk_state); | |
341 | if (ACPI_FAILURE(status)) { | |
342 | return_ACPI_STATUS | |
343 | (status); | |
344 | } | |
345 | } | |
967440e3 | 346 | |
958dd242 BM |
347 | status = AE_OK; |
348 | } | |
349 | } | |
350 | ||
351 | if (ACPI_FAILURE(status)) { | |
958dd242 BM |
352 | ACPI_ERROR_NAMESPACE(path, status); |
353 | return_ACPI_STATUS(status); | |
354 | } | |
1da177e4 LT |
355 | } |
356 | break; | |
357 | } | |
358 | ||
1da177e4 LT |
359 | /* Common exit */ |
360 | ||
361 | if (!op) { | |
52fc0b02 | 362 | |
1da177e4 LT |
363 | /* Create a new op */ |
364 | ||
4be44fcd | 365 | op = acpi_ps_alloc_op(walk_state->opcode); |
1da177e4 | 366 | if (!op) { |
28f55ebc | 367 | return_ACPI_STATUS(AE_NO_MEMORY); |
1da177e4 LT |
368 | } |
369 | } | |
370 | ||
28f55ebc | 371 | /* Initialize the op */ |
1da177e4 LT |
372 | |
373 | #if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)) | |
c51a4de8 | 374 | op->named.path = ACPI_CAST_PTR(u8, path); |
1da177e4 LT |
375 | #endif |
376 | ||
28f55ebc BM |
377 | if (node) { |
378 | /* | |
379 | * Put the Node in the "op" object that the parser uses, so we | |
380 | * can get it again quickly when this scope is closed | |
381 | */ | |
382 | op->common.node = node; | |
383 | op->named.name = node->name.integer; | |
384 | } | |
385 | ||
4be44fcd LB |
386 | acpi_ps_append_arg(acpi_ps_get_parent_scope(&walk_state->parser_state), |
387 | op); | |
1da177e4 | 388 | *out_op = op; |
28f55ebc | 389 | return_ACPI_STATUS(status); |
1da177e4 LT |
390 | } |
391 | ||
1da177e4 LT |
392 | /******************************************************************************* |
393 | * | |
394 | * FUNCTION: acpi_ds_load1_end_op | |
395 | * | |
396 | * PARAMETERS: walk_state - Current state of the parse tree walk | |
1da177e4 LT |
397 | * |
398 | * RETURN: Status | |
399 | * | |
400 | * DESCRIPTION: Ascending callback used during the loading of the namespace, | |
401 | * both control methods and everything else. | |
402 | * | |
403 | ******************************************************************************/ | |
404 | ||
28f55ebc | 405 | acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state) |
1da177e4 | 406 | { |
4be44fcd LB |
407 | union acpi_parse_object *op; |
408 | acpi_object_type object_type; | |
409 | acpi_status status = AE_OK; | |
1da177e4 | 410 | |
b229cf92 | 411 | ACPI_FUNCTION_TRACE(ds_load1_end_op); |
1da177e4 LT |
412 | |
413 | op = walk_state->op; | |
4be44fcd LB |
414 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, |
415 | walk_state)); | |
1da177e4 LT |
416 | |
417 | /* We are only interested in opcodes that have an associated name */ | |
418 | ||
419 | if (!(walk_state->op_info->flags & (AML_NAMED | AML_FIELD))) { | |
28f55ebc | 420 | return_ACPI_STATUS(AE_OK); |
1da177e4 LT |
421 | } |
422 | ||
423 | /* Get the object type to determine if we should pop the scope */ | |
424 | ||
425 | object_type = walk_state->op_info->object_type; | |
426 | ||
427 | #ifndef ACPI_NO_METHOD_EXECUTION | |
428 | if (walk_state->op_info->flags & AML_FIELD) { | |
28f55ebc BM |
429 | /* |
430 | * If we are executing a method, do not create any namespace objects | |
431 | * during the load phase, only during execution. | |
432 | */ | |
433 | if (!walk_state->method_node) { | |
434 | if (walk_state->opcode == AML_FIELD_OP || | |
435 | walk_state->opcode == AML_BANK_FIELD_OP || | |
436 | walk_state->opcode == AML_INDEX_FIELD_OP) { | |
437 | status = | |
438 | acpi_ds_init_field_objects(op, walk_state); | |
439 | } | |
1da177e4 | 440 | } |
28f55ebc | 441 | return_ACPI_STATUS(status); |
1da177e4 LT |
442 | } |
443 | ||
28f55ebc BM |
444 | /* |
445 | * If we are executing a method, do not create any namespace objects | |
446 | * during the load phase, only during execution. | |
447 | */ | |
448 | if (!walk_state->method_node) { | |
449 | if (op->common.aml_opcode == AML_REGION_OP) { | |
450 | status = | |
451 | acpi_ex_create_region(op->named.data, | |
452 | op->named.length, | |
967440e3 BM |
453 | (acpi_adr_space_type) ((op-> |
454 | common. | |
455 | value. | |
456 | arg)-> | |
457 | common. | |
458 | value. | |
459 | integer), | |
28f55ebc BM |
460 | walk_state); |
461 | if (ACPI_FAILURE(status)) { | |
462 | return_ACPI_STATUS(status); | |
463 | } | |
941f48bb LM |
464 | } else if (op->common.aml_opcode == AML_DATA_REGION_OP) { |
465 | status = | |
466 | acpi_ex_create_region(op->named.data, | |
467 | op->named.length, | |
82a1b7cb | 468 | ACPI_ADR_SPACE_DATA_TABLE, |
941f48bb LM |
469 | walk_state); |
470 | if (ACPI_FAILURE(status)) { | |
471 | return_ACPI_STATUS(status); | |
472 | } | |
1da177e4 LT |
473 | } |
474 | } | |
475 | #endif | |
476 | ||
477 | if (op->common.aml_opcode == AML_NAME_OP) { | |
52fc0b02 | 478 | |
1da177e4 LT |
479 | /* For Name opcode, get the object type from the argument */ |
480 | ||
481 | if (op->common.value.arg) { | |
4be44fcd LB |
482 | object_type = (acpi_ps_get_opcode_info((op->common. |
483 | value.arg)-> | |
484 | common. | |
485 | aml_opcode))-> | |
486 | object_type; | |
28f55ebc BM |
487 | |
488 | /* Set node type if we have a namespace node */ | |
489 | ||
490 | if (op->common.node) { | |
491 | op->common.node->type = (u8) object_type; | |
492 | } | |
1da177e4 LT |
493 | } |
494 | } | |
495 | ||
defba1d8 BM |
496 | /* |
497 | * If we are executing a method, do not create any namespace objects | |
498 | * during the load phase, only during execution. | |
499 | */ | |
500 | if (!walk_state->method_node) { | |
501 | if (op->common.aml_opcode == AML_METHOD_OP) { | |
502 | /* | |
503 | * method_op pkg_length name_string method_flags term_list | |
504 | * | |
505 | * Note: We must create the method node/object pair as soon as we | |
967440e3 | 506 | * see the method declaration. This allows later pass1 parsing |
defba1d8 BM |
507 | * of invocations of the method (need to know the number of |
508 | * arguments.) | |
509 | */ | |
510 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, | |
b229cf92 | 511 | "LOADING-Method: State=%p Op=%p NamedObj=%p\n", |
defba1d8 | 512 | walk_state, op, op->named.node)); |
1da177e4 | 513 | |
defba1d8 BM |
514 | if (!acpi_ns_get_attached_object(op->named.node)) { |
515 | walk_state->operands[0] = | |
516 | ACPI_CAST_PTR(void, op->named.node); | |
517 | walk_state->num_operands = 1; | |
1da177e4 | 518 | |
defba1d8 BM |
519 | status = |
520 | acpi_ds_create_operands(walk_state, | |
521 | op->common.value. | |
522 | arg); | |
523 | if (ACPI_SUCCESS(status)) { | |
524 | status = | |
525 | acpi_ex_create_method(op->named. | |
526 | data, | |
527 | op->named. | |
528 | length, | |
529 | walk_state); | |
530 | } | |
967440e3 | 531 | |
defba1d8 BM |
532 | walk_state->operands[0] = NULL; |
533 | walk_state->num_operands = 0; | |
1da177e4 | 534 | |
defba1d8 BM |
535 | if (ACPI_FAILURE(status)) { |
536 | return_ACPI_STATUS(status); | |
537 | } | |
1da177e4 LT |
538 | } |
539 | } | |
540 | } | |
541 | ||
defba1d8 | 542 | /* Pop the scope stack (only if loading a table) */ |
1da177e4 | 543 | |
defba1d8 | 544 | if (!walk_state->method_node && acpi_ns_opens_scope(object_type)) { |
4be44fcd LB |
545 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
546 | "(%s): Popping scope for Op %p\n", | |
547 | acpi_ut_get_type_name(object_type), op)); | |
1da177e4 | 548 | |
4be44fcd | 549 | status = acpi_ds_scope_stack_pop(walk_state); |
1da177e4 LT |
550 | } |
551 | ||
28f55ebc | 552 | return_ACPI_STATUS(status); |
1da177e4 | 553 | } |