diff options
Diffstat (limited to 'drivers/acpi/acpica/nsaccess.c')
-rw-r--r-- | drivers/acpi/acpica/nsaccess.c | 51 |
1 files changed, 24 insertions, 27 deletions
diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c index b6968a65cd4f..9c3cdbe2d82a 100644 --- a/drivers/acpi/acpica/nsaccess.c +++ b/drivers/acpi/acpica/nsaccess.c | |||
@@ -118,9 +118,8 @@ acpi_status acpi_ns_root_initialize(void) | |||
118 | } | 118 | } |
119 | 119 | ||
120 | /* | 120 | /* |
121 | * Name entered successfully. | 121 | * Name entered successfully. If entry in pre_defined_names[] specifies |
122 | * If entry in pre_defined_names[] specifies an | 122 | * an initial value, create the initial value. |
123 | * initial value, create the initial value. | ||
124 | */ | 123 | */ |
125 | if (init_val->val) { | 124 | if (init_val->val) { |
126 | status = acpi_os_predefined_override(init_val, &val); | 125 | status = acpi_os_predefined_override(init_val, &val); |
@@ -178,9 +177,8 @@ acpi_status acpi_ns_root_initialize(void) | |||
178 | 177 | ||
179 | case ACPI_TYPE_STRING: | 178 | case ACPI_TYPE_STRING: |
180 | 179 | ||
181 | /* | 180 | /* Build an object around the static string */ |
182 | * Build an object around the static string | 181 | |
183 | */ | ||
184 | obj_desc->string.length = | 182 | obj_desc->string.length = |
185 | (u32) ACPI_STRLEN(val); | 183 | (u32) ACPI_STRLEN(val); |
186 | obj_desc->string.pointer = val; | 184 | obj_desc->string.pointer = val; |
@@ -314,10 +312,8 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, | |||
314 | return_ACPI_STATUS(AE_NO_NAMESPACE); | 312 | return_ACPI_STATUS(AE_NO_NAMESPACE); |
315 | } | 313 | } |
316 | 314 | ||
317 | /* | 315 | /* Get the prefix scope. A null scope means use the root scope */ |
318 | * Get the prefix scope. | 316 | |
319 | * A null scope means use the root scope | ||
320 | */ | ||
321 | if ((!scope_info) || (!scope_info->scope.node)) { | 317 | if ((!scope_info) || (!scope_info->scope.node)) { |
322 | ACPI_DEBUG_PRINT((ACPI_DB_NAMES, | 318 | ACPI_DEBUG_PRINT((ACPI_DB_NAMES, |
323 | "Null scope prefix, using root node (%p)\n", | 319 | "Null scope prefix, using root node (%p)\n", |
@@ -337,8 +333,8 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, | |||
337 | if (!(flags & ACPI_NS_PREFIX_IS_SCOPE)) { | 333 | if (!(flags & ACPI_NS_PREFIX_IS_SCOPE)) { |
338 | /* | 334 | /* |
339 | * This node might not be a actual "scope" node (such as a | 335 | * This node might not be a actual "scope" node (such as a |
340 | * Device/Method, etc.) It could be a Package or other object node. | 336 | * Device/Method, etc.) It could be a Package or other object |
341 | * Backup up the tree to find the containing scope node. | 337 | * node. Backup up the tree to find the containing scope node. |
342 | */ | 338 | */ |
343 | while (!acpi_ns_opens_scope(prefix_node->type) && | 339 | while (!acpi_ns_opens_scope(prefix_node->type) && |
344 | prefix_node->type != ACPI_TYPE_ANY) { | 340 | prefix_node->type != ACPI_TYPE_ANY) { |
@@ -348,7 +344,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, | |||
348 | } | 344 | } |
349 | } | 345 | } |
350 | 346 | ||
351 | /* Save type TBD: may be no longer necessary */ | 347 | /* Save type. TBD: may be no longer necessary */ |
352 | 348 | ||
353 | type_to_check_for = type; | 349 | type_to_check_for = type; |
354 | 350 | ||
@@ -413,6 +409,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, | |||
413 | /* Name is fully qualified, no search rules apply */ | 409 | /* Name is fully qualified, no search rules apply */ |
414 | 410 | ||
415 | search_parent_flag = ACPI_NS_NO_UPSEARCH; | 411 | search_parent_flag = ACPI_NS_NO_UPSEARCH; |
412 | |||
416 | /* | 413 | /* |
417 | * Point past this prefix to the name segment | 414 | * Point past this prefix to the name segment |
418 | * part or the next Parent Prefix | 415 | * part or the next Parent Prefix |
@@ -428,7 +425,8 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, | |||
428 | /* Current scope has no parent scope */ | 425 | /* Current scope has no parent scope */ |
429 | 426 | ||
430 | ACPI_ERROR((AE_INFO, | 427 | ACPI_ERROR((AE_INFO, |
431 | "ACPI path has too many parent prefixes (^) - reached beyond root node")); | 428 | "ACPI path has too many parent prefixes (^) " |
429 | "- reached beyond root node")); | ||
432 | return_ACPI_STATUS(AE_NOT_FOUND); | 430 | return_ACPI_STATUS(AE_NOT_FOUND); |
433 | } | 431 | } |
434 | } | 432 | } |
@@ -530,9 +528,9 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, | |||
530 | while (num_segments && current_node) { | 528 | while (num_segments && current_node) { |
531 | num_segments--; | 529 | num_segments--; |
532 | if (!num_segments) { | 530 | if (!num_segments) { |
533 | /* | 531 | |
534 | * This is the last segment, enable typechecking | 532 | /* This is the last segment, enable typechecking */ |
535 | */ | 533 | |
536 | this_search_type = type; | 534 | this_search_type = type; |
537 | 535 | ||
538 | /* | 536 | /* |
@@ -583,9 +581,9 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, | |||
583 | if (num_segments > 0) { | 581 | if (num_segments > 0) { |
584 | /* | 582 | /* |
585 | * If we have an alias to an object that opens a scope (such as a | 583 | * If we have an alias to an object that opens a scope (such as a |
586 | * device or processor), we need to dereference the alias here so that | 584 | * device or processor), we need to dereference the alias here so |
587 | * we can access any children of the original node (via the remaining | 585 | * that we can access any children of the original node (via the |
588 | * segments). | 586 | * remaining segments). |
589 | */ | 587 | */ |
590 | if (this_node->type == ACPI_TYPE_LOCAL_ALIAS) { | 588 | if (this_node->type == ACPI_TYPE_LOCAL_ALIAS) { |
591 | if (!this_node->object) { | 589 | if (!this_node->object) { |
@@ -593,8 +591,8 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, | |||
593 | } | 591 | } |
594 | 592 | ||
595 | if (acpi_ns_opens_scope | 593 | if (acpi_ns_opens_scope |
596 | (((struct acpi_namespace_node *)this_node-> | 594 | (((struct acpi_namespace_node *) |
597 | object)->type)) { | 595 | this_node->object)->type)) { |
598 | this_node = | 596 | this_node = |
599 | (struct acpi_namespace_node *) | 597 | (struct acpi_namespace_node *) |
600 | this_node->object; | 598 | this_node->object; |
@@ -638,8 +636,8 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, | |||
638 | 636 | ||
639 | /* | 637 | /* |
640 | * If this is the last name segment and we are not looking for a | 638 | * If this is the last name segment and we are not looking for a |
641 | * specific type, but the type of found object is known, use that type | 639 | * specific type, but the type of found object is known, use that |
642 | * to (later) see if it opens a scope. | 640 | * type to (later) see if it opens a scope. |
643 | */ | 641 | */ |
644 | if (type == ACPI_TYPE_ANY) { | 642 | if (type == ACPI_TYPE_ANY) { |
645 | type = this_node->type; | 643 | type = this_node->type; |
@@ -652,9 +650,8 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, | |||
652 | current_node = this_node; | 650 | current_node = this_node; |
653 | } | 651 | } |
654 | 652 | ||
655 | /* | 653 | /* Always check if we need to open a new scope */ |
656 | * Always check if we need to open a new scope | 654 | |
657 | */ | ||
658 | if (!(flags & ACPI_NS_DONT_OPEN_SCOPE) && (walk_state)) { | 655 | if (!(flags & ACPI_NS_DONT_OPEN_SCOPE) && (walk_state)) { |
659 | /* | 656 | /* |
660 | * If entry is a type which opens a scope, push the new scope on the | 657 | * If entry is a type which opens a scope, push the new scope on the |