diff options
-rw-r--r-- | drivers/acpi/dispatcher/dsmethod.c | 8 | ||||
-rw-r--r-- | drivers/acpi/dispatcher/dsopcode.c | 15 | ||||
-rw-r--r-- | drivers/acpi/dispatcher/dswload.c | 56 | ||||
-rw-r--r-- | drivers/acpi/dispatcher/dswstate.c | 1 | ||||
-rw-r--r-- | drivers/acpi/executer/exconfig.c | 27 | ||||
-rw-r--r-- | drivers/acpi/executer/exfield.c | 5 | ||||
-rw-r--r-- | drivers/acpi/executer/exnames.c | 7 | ||||
-rw-r--r-- | drivers/acpi/executer/exoparg1.c | 11 | ||||
-rw-r--r-- | drivers/acpi/namespace/nsparse.c | 2 | ||||
-rw-r--r-- | drivers/acpi/parser/psparse.c | 109 | ||||
-rw-r--r-- | drivers/acpi/tables/tbxfroot.c | 6 | ||||
-rw-r--r-- | drivers/acpi/utilities/utmisc.c | 38 | ||||
-rw-r--r-- | include/acpi/acconfig.h | 2 | ||||
-rw-r--r-- | include/acpi/acstruct.h | 2 |
14 files changed, 198 insertions, 91 deletions
diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c index 9fc3f4c..c9d9a6c 100644 --- a/drivers/acpi/dispatcher/dsmethod.c +++ b/drivers/acpi/dispatcher/dsmethod.c @@ -139,7 +139,8 @@ acpi_ds_parse_method ( walk_state = acpi_ds_create_walk_state (owner_id, NULL, NULL, NULL); if (!walk_state) { - return_ACPI_STATUS (AE_NO_MEMORY); + status = AE_NO_MEMORY; + goto cleanup; } status = acpi_ds_init_aml_walk (walk_state, op, node, @@ -147,7 +148,7 @@ acpi_ds_parse_method ( obj_desc->method.aml_length, NULL, 1); if (ACPI_FAILURE (status)) { acpi_ds_delete_walk_state (walk_state); - return_ACPI_STATUS (status); + goto cleanup; } /* @@ -161,13 +162,14 @@ acpi_ds_parse_method ( */ status = acpi_ps_parse_aml (walk_state); if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + goto cleanup; } ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "**** [%4.4s] Parsed **** named_obj=%p Op=%p\n", acpi_ut_get_node_name (obj_handle), obj_handle, op)); +cleanup: acpi_ps_delete_parse_tree (op); return_ACPI_STATUS (status); } diff --git a/drivers/acpi/dispatcher/dsopcode.c b/drivers/acpi/dispatcher/dsopcode.c index ba13bca..750bdb1 100644 --- a/drivers/acpi/dispatcher/dsopcode.c +++ b/drivers/acpi/dispatcher/dsopcode.c @@ -119,14 +119,15 @@ acpi_ds_execute_arguments ( walk_state = acpi_ds_create_walk_state (0, NULL, NULL, NULL); if (!walk_state) { - return_ACPI_STATUS (AE_NO_MEMORY); + status = AE_NO_MEMORY; + goto cleanup; } status = acpi_ds_init_aml_walk (walk_state, op, NULL, aml_start, aml_length, NULL, 1); if (ACPI_FAILURE (status)) { acpi_ds_delete_walk_state (walk_state); - return_ACPI_STATUS (status); + goto cleanup; } /* Mark this parse as a deferred opcode */ @@ -138,8 +139,7 @@ acpi_ds_execute_arguments ( status = acpi_ps_parse_aml (walk_state); if (ACPI_FAILURE (status)) { - acpi_ps_delete_parse_tree (op); - return_ACPI_STATUS (status); + goto cleanup; } /* Get and init the Op created above */ @@ -160,7 +160,8 @@ acpi_ds_execute_arguments ( walk_state = acpi_ds_create_walk_state (0, NULL, NULL, NULL); if (!walk_state) { - return_ACPI_STATUS (AE_NO_MEMORY); + status = AE_NO_MEMORY; + goto cleanup; } /* Execute the opcode and arguments */ @@ -169,13 +170,15 @@ acpi_ds_execute_arguments ( aml_length, NULL, 3); if (ACPI_FAILURE (status)) { acpi_ds_delete_walk_state (walk_state); - return_ACPI_STATUS (status); + goto cleanup; } /* Mark this execution as a deferred opcode */ walk_state->deferred_node = node; status = acpi_ps_parse_aml (walk_state); + +cleanup: acpi_ps_delete_parse_tree (op); return_ACPI_STATUS (status); } diff --git a/drivers/acpi/dispatcher/dswload.c b/drivers/acpi/dispatcher/dswload.c index 1ac197c..e2e0a85 100644 --- a/drivers/acpi/dispatcher/dswload.c +++ b/drivers/acpi/dispatcher/dswload.c @@ -145,15 +145,6 @@ acpi_ds_load1_begin_op ( if (op) { if (!(walk_state->op_info->flags & AML_NAMED)) { -#if 0 - if ((walk_state->op_info->class == AML_CLASS_EXECUTE) || - (walk_state->op_info->class == AML_CLASS_CONTROL)) { - acpi_os_printf ("\n\n***EXECUTABLE OPCODE %s***\n\n", - walk_state->op_info->name); - *out_op = op; - return (AE_CTRL_SKIP); - } -#endif *out_op = op; return (AE_OK); } @@ -486,6 +477,15 @@ acpi_ds_load2_begin_op ( ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, walk_state)); if (op) { + if ((walk_state->control_state) && + (walk_state->control_state->common.state == + ACPI_CONTROL_CONDITIONAL_EXECUTING)) { + /* We are executing a while loop outside of a method */ + + status = acpi_ds_exec_begin_op (walk_state, out_op); + return_ACPI_STATUS (status); + } + /* We only care about Namespace opcodes here */ if ((!(walk_state->op_info->flags & AML_NSOPCODE) && @@ -493,9 +493,14 @@ acpi_ds_load2_begin_op ( (!(walk_state->op_info->flags & AML_NAMED))) { if ((walk_state->op_info->class == AML_CLASS_EXECUTE) || (walk_state->op_info->class == AML_CLASS_CONTROL)) { - ACPI_REPORT_WARNING (( - "Encountered executable code at module level, [%s]\n", - acpi_ps_get_opcode_name (walk_state->opcode))); + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "Begin/EXEC: %s (fl %8.8X)\n", walk_state->op_info->name, + walk_state->op_info->flags)); + + /* Executing a type1 or type2 opcode outside of a method */ + + status = acpi_ds_exec_begin_op (walk_state, out_op); + return_ACPI_STATUS (status); } return_ACPI_STATUS (AE_OK); } @@ -657,8 +662,10 @@ acpi_ds_load2_begin_op ( break; } + /* Add new entry into namespace */ + status = acpi_ns_lookup (walk_state->scope_info, buffer_ptr, object_type, - ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH, + ACPI_IMODE_LOAD_PASS2, ACPI_NS_NO_UPSEARCH, walk_state, &(node)); break; } @@ -668,7 +675,6 @@ acpi_ds_load2_begin_op ( return_ACPI_STATUS (status); } - if (!op) { /* Create a new op */ @@ -682,9 +688,7 @@ acpi_ds_load2_begin_op ( if (node) { op->named.name = node->name.integer; } - if (out_op) { - *out_op = op; - } + *out_op = op; } /* @@ -731,9 +735,24 @@ acpi_ds_load2_end_op ( ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n", walk_state->op_info->name, op, walk_state)); - /* Only interested in opcodes that have namespace objects */ + /* Check if opcode had an associated namespace object */ if (!(walk_state->op_info->flags & AML_NSOBJECT)) { +#ifndef ACPI_NO_METHOD_EXECUTION + /* No namespace object. Executable opcode? */ + + if ((walk_state->op_info->class == AML_CLASS_EXECUTE) || + (walk_state->op_info->class == AML_CLASS_CONTROL)) { + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "End/EXEC: %s (fl %8.8X)\n", walk_state->op_info->name, + walk_state->op_info->flags)); + + /* Executing a type1 or type2 opcode outside of a method */ + + status = acpi_ds_exec_end_op (walk_state); + return_ACPI_STATUS (status); + } +#endif return_ACPI_STATUS (AE_OK); } @@ -742,7 +761,6 @@ acpi_ds_load2_end_op ( "Ending scope Op=%p State=%p\n", op, walk_state)); } - object_type = walk_state->op_info->object_type; /* diff --git a/drivers/acpi/dispatcher/dswstate.c b/drivers/acpi/dispatcher/dswstate.c index 4ef0e85..cc45d52 100644 --- a/drivers/acpi/dispatcher/dswstate.c +++ b/drivers/acpi/dispatcher/dswstate.c @@ -762,6 +762,7 @@ acpi_ds_init_aml_walk ( /* The next_op of the next_walk will be the beginning of the method */ walk_state->next_op = NULL; + walk_state->pass_number = (u8) pass_number; if (info) { if (info->parameter_type == ACPI_PARAM_GPE) { diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c index 734b2f2..8bfa6ef 100644 --- a/drivers/acpi/executer/exconfig.c +++ b/drivers/acpi/executer/exconfig.c @@ -376,16 +376,22 @@ acpi_ex_load_op ( */ status = acpi_ex_read_data_from_field (walk_state, obj_desc, &buffer_desc); if (ACPI_FAILURE (status)) { - goto cleanup; + return_ACPI_STATUS (status); } table_ptr = ACPI_CAST_PTR (struct acpi_table_header, buffer_desc->buffer.pointer); - /* Sanity check the table length */ + /* All done with the buffer_desc, delete it */ + + buffer_desc->buffer.pointer = NULL; + acpi_ut_remove_reference (buffer_desc); + + /* Sanity check the table length */ if (table_ptr->length < sizeof (struct acpi_table_header)) { - return_ACPI_STATUS (AE_BAD_HEADER); + status = AE_BAD_HEADER; + goto cleanup; } break; @@ -413,7 +419,9 @@ acpi_ex_load_op ( status = acpi_ex_add_table (table_ptr, acpi_gbl_root_node, &ddb_handle); if (ACPI_FAILURE (status)) { - goto cleanup; + /* On error, table_ptr was deallocated above */ + + return_ACPI_STATUS (status); } /* Store the ddb_handle into the Target operand */ @@ -421,17 +429,14 @@ acpi_ex_load_op ( status = acpi_ex_store (ddb_handle, target, walk_state); if (ACPI_FAILURE (status)) { (void) acpi_ex_unload_table (ddb_handle); - } - return_ACPI_STATUS (status); + /* table_ptr was deallocated above */ + return_ACPI_STATUS (status); + } cleanup: - - if (buffer_desc) { - acpi_ut_remove_reference (buffer_desc); - } - else { + if (ACPI_FAILURE (status)) { ACPI_MEM_FREE (table_ptr); } return_ACPI_STATUS (status); diff --git a/drivers/acpi/executer/exfield.c b/drivers/acpi/executer/exfield.c index 22c8fa4..a690c92 100644 --- a/drivers/acpi/executer/exfield.c +++ b/drivers/acpi/executer/exfield.c @@ -87,6 +87,9 @@ acpi_ex_read_data_from_field ( if (!obj_desc) { return_ACPI_STATUS (AE_AML_NO_OPERAND); } + if (!ret_buffer_desc) { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } if (ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_BUFFER_FIELD) { /* @@ -182,7 +185,7 @@ exit: if (ACPI_FAILURE (status)) { acpi_ut_remove_reference (buffer_desc); } - else if (ret_buffer_desc) { + else { *ret_buffer_desc = buffer_desc; } diff --git a/drivers/acpi/executer/exnames.c b/drivers/acpi/executer/exnames.c index 639f0bd..b6ba1a7 100644 --- a/drivers/acpi/executer/exnames.c +++ b/drivers/acpi/executer/exnames.c @@ -438,6 +438,13 @@ acpi_ex_get_name_string ( status = AE_AML_BAD_NAME; } + if (ACPI_FAILURE (status)) { + if (name_string) { + ACPI_MEM_FREE (name_string); + } + return_ACPI_STATUS (status); + } + *out_name_string = name_string; *out_name_length = (u32) (aml_address - in_aml_address); diff --git a/drivers/acpi/executer/exoparg1.c b/drivers/acpi/executer/exoparg1.c index dbdf826..ffc61dd 100644 --- a/drivers/acpi/executer/exoparg1.c +++ b/drivers/acpi/executer/exoparg1.c @@ -127,15 +127,16 @@ acpi_ex_opcode_0A_0T_1R ( cleanup: - if (!walk_state->result_obj) { - walk_state->result_obj = return_desc; - } - /* Delete return object on error */ - if (ACPI_FAILURE (status)) { + if ((ACPI_FAILURE (status)) || walk_state->result_obj) { acpi_ut_remove_reference (return_desc); } + else { + /* Save the return value */ + + walk_state->result_obj = return_desc; + } return_ACPI_STATUS (status); } diff --git a/drivers/acpi/namespace/nsparse.c b/drivers/acpi/namespace/nsparse.c index a0e13e8..f81b836 100644 --- a/drivers/acpi/namespace/nsparse.c +++ b/drivers/acpi/namespace/nsparse.c @@ -146,6 +146,7 @@ acpi_ns_parse_table ( * to service the entire parse. The second pass of the parse then * performs another complete parse of the AML.. */ + ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "**** Start pass 1\n")); status = acpi_ns_one_complete_parse (1, table_desc); if (ACPI_FAILURE (status)) { return_ACPI_STATUS (status); @@ -160,6 +161,7 @@ acpi_ns_parse_table ( * overhead of this is compensated for by the fact that the * parse objects are all cached. */ + ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "**** Start pass 2\n")); status = acpi_ns_one_complete_parse (2, table_desc); if (ACPI_FAILURE (status)) { return_ACPI_STATUS (status); diff --git a/drivers/acpi/parser/psparse.c b/drivers/acpi/parser/psparse.c index bbfdc1a..bdbe0d9 100644 --- a/drivers/acpi/parser/psparse.c +++ b/drivers/acpi/parser/psparse.c @@ -66,7 +66,7 @@ static u32 acpi_gbl_depth = 0; /* Local prototypes */ -static void +static acpi_status acpi_ps_complete_this_op ( struct acpi_walk_state *walk_state, union acpi_parse_object *op); @@ -152,13 +152,13 @@ acpi_ps_peek_opcode ( * PARAMETERS: walk_state - Current State * Op - Op to complete * - * RETURN: None. + * RETURN: Status * * DESCRIPTION: Perform any cleanup at the completion of an Op. * ******************************************************************************/ -static void +static acpi_status acpi_ps_complete_this_op ( struct acpi_walk_state *walk_state, union acpi_parse_object *op) @@ -175,19 +175,26 @@ acpi_ps_complete_this_op ( /* Check for null Op, can happen if AML code is corrupt */ if (!op) { - return_VOID; + return_ACPI_STATUS (AE_OK); /* OK for now */ } /* Delete this op and the subtree below it if asked to */ if (((walk_state->parse_flags & ACPI_PARSE_TREE_MASK) != ACPI_PARSE_DELETE_TREE) || (walk_state->op_info->class == AML_CLASS_ARGUMENT)) { - return_VOID; + return_ACPI_STATUS (AE_OK); } /* Make sure that we only delete this subtree */ if (op->common.parent) { + prev = op->common.parent->common.value.arg; + if (!prev) { + /* Nothing more to do */ + + goto cleanup; + } + /* * Check if we need to replace the operator and its subtree * with a return value op (placeholder op) @@ -206,7 +213,7 @@ acpi_ps_complete_this_op ( */ replacement_op = acpi_ps_alloc_op (AML_INT_RETURN_VALUE_OP); if (!replacement_op) { - goto cleanup; + goto allocate_error; } break; @@ -223,18 +230,17 @@ acpi_ps_complete_this_op ( (op->common.parent->common.aml_opcode == AML_VAR_PACKAGE_OP)) { replacement_op = acpi_ps_alloc_op (AML_INT_RETURN_VALUE_OP); if (!replacement_op) { - goto cleanup; + goto allocate_error; } } - - if ((op->common.parent->common.aml_opcode == AML_NAME_OP) && - (walk_state->descending_callback != acpi_ds_exec_begin_op)) { + else if ((op->common.parent->common.aml_opcode == AML_NAME_OP) && + (walk_state->pass_number <= ACPI_IMODE_LOAD_PASS2)) { if ((op->common.aml_opcode == AML_BUFFER_OP) || (op->common.aml_opcode == AML_PACKAGE_OP) || (op->common.aml_opcode == AML_VAR_PACKAGE_OP)) { replacement_op = acpi_ps_alloc_op (op->common.aml_opcode); if (!replacement_op) { - goto cleanup; + goto allocate_error; } replacement_op->named.data = op->named.data; @@ -244,15 +250,15 @@ acpi_ps_complete_this_op ( break; default: + replacement_op = acpi_ps_alloc_op (AML_INT_RETURN_VALUE_OP); if (!replacement_op) { - goto cleanup; + goto allocate_error; } } /* We must unlink this op from the parent tree */ - prev = op->common.parent->common.value.arg; if (prev == op) { /* This op is the first in the list */ @@ -298,7 +304,15 @@ cleanup: /* Now we can actually delete the subtree rooted at Op */ acpi_ps_delete_parse_tree (op); - return_VOID; + return_ACPI_STATUS (AE_OK); + + +allocate_error: + + /* Always delete the subtree, even on error */ + + acpi_ps_delete_parse_tree (op); + return_ACPI_STATUS (AE_NO_MEMORY); } @@ -443,6 +457,7 @@ acpi_ps_parse_loop ( struct acpi_walk_state *walk_state) { acpi_status status = AE_OK; + acpi_status status2; union acpi_parse_object *op = NULL; /* current op */ union acpi_parse_object *arg = NULL; union acpi_parse_object *pre_op = NULL; @@ -744,7 +759,6 @@ acpi_ps_parse_loop ( break; default: - /* * Op is not a constant or string, append each argument * to the Op @@ -770,6 +784,23 @@ acpi_ps_parse_loop ( /* Special processing for certain opcodes */ + if (walk_state->pass_number <= ACPI_IMODE_LOAD_PASS1) { + switch (op->common.aml_opcode) { + case AML_IF_OP: + case AML_ELSE_OP: + case AML_WHILE_OP: + + /* Skip body of if/else/while in pass 1 */ + + parser_state->aml = parser_state->pkg_end; + walk_state->arg_count = 0; + break; + + default: + break; + } + } + switch (op->common.aml_opcode) { case AML_METHOD_OP: @@ -796,7 +827,7 @@ acpi_ps_parse_loop ( if ((op->common.parent) && (op->common.parent->common.aml_opcode == AML_NAME_OP) && - (walk_state->descending_callback != acpi_ds_exec_begin_op)) { + (walk_state->pass_number <= ACPI_IMODE_LOAD_PASS2)) { /* * Skip parsing of Buffers and Packages * because we don't have enough info in the first pass @@ -900,15 +931,21 @@ close_this_op: */ parser_state->scope->parse_scope.arg_count--; - /* Close this Op (will result in parse subtree deletion) */ + /* Finished with pre_op */ - acpi_ps_complete_this_op (walk_state, op); - op = NULL; if (pre_op) { acpi_ps_free_op (pre_op); pre_op = NULL; } + /* Close this Op (will result in parse subtree deletion) */ + + status2 = acpi_ps_complete_this_op (walk_state, op); + if (ACPI_FAILURE (status2)) { + return_ACPI_STATUS (status2); + } + op = NULL; + switch (status) { case AE_OK: break; @@ -936,7 +973,10 @@ close_this_op: status = walk_state->ascending_callback (walk_state); status = acpi_ps_next_parse_state (walk_state, op, status); - acpi_ps_complete_this_op (walk_state, op); + status2 = acpi_ps_complete_this_op (walk_state, op); + if (ACPI_FAILURE (status2)) { + return_ACPI_STATUS (status2); + } op = NULL; } status = AE_OK; @@ -962,7 +1002,10 @@ close_this_op: status = walk_state->ascending_callback (walk_state); status = acpi_ps_next_parse_state (walk_state, op, status); - acpi_ps_complete_this_op (walk_state, op); + status2 = acpi_ps_complete_this_op (walk_state, op); + if (ACPI_FAILURE (status2)) { + return_ACPI_STATUS (status2); + } op = NULL; status = AE_OK; @@ -976,7 +1019,10 @@ close_this_op: /* Clean up */ do { if (op) { - acpi_ps_complete_this_op (walk_state, op); + status2 = acpi_ps_complete_this_op (walk_state, op); + if (ACPI_FAILURE (status2)) { + return_ACPI_STATUS (status2); + } } acpi_ps_pop_scope (parser_state, &op, &walk_state->arg_types, &walk_state->arg_count); @@ -990,7 +1036,10 @@ close_this_op: do { if (op) { - acpi_ps_complete_this_op (walk_state, op); + status2 = acpi_ps_complete_this_op (walk_state, op); + if (ACPI_FAILURE (status2)) { + return_ACPI_STATUS (status2); + } } acpi_ps_pop_scope (parser_state, &op, &walk_state->arg_types, &walk_state->arg_count); @@ -1053,7 +1102,10 @@ close_this_op: /* Clean up */ do { if (op) { - acpi_ps_complete_this_op (walk_state, op); + status2 = acpi_ps_complete_this_op (walk_state, op); + if (ACPI_FAILURE (status2)) { + return_ACPI_STATUS (status2); + } } acpi_ps_pop_scope (parser_state, &op, @@ -1065,12 +1117,17 @@ close_this_op: } else if (ACPI_FAILURE (status)) { - acpi_ps_complete_this_op (walk_state, op); + /* First error is most important */ + + (void) acpi_ps_complete_this_op (walk_state, op); return_ACPI_STATUS (status); } } - acpi_ps_complete_this_op (walk_state, op); + status2 = acpi_ps_complete_this_op (walk_state, op); + if (ACPI_FAILURE (status2)) { + return_ACPI_STATUS (status2); + } } acpi_ps_pop_scope (parser_state, &op, &walk_state->arg_types, diff --git a/drivers/acpi/tables/tbxfroot.c b/drivers/acpi/tables/tbxfroot.c index dc3c3f6..198997a 100644 --- a/drivers/acpi/tables/tbxfroot.c +++ b/drivers/acpi/tables/tbxfroot.c @@ -331,8 +331,10 @@ acpi_get_firmware_table ( cleanup: - acpi_os_unmap_memory (rsdt_info->pointer, - (acpi_size) rsdt_info->pointer->length); + if (rsdt_info->pointer) { + acpi_os_unmap_memory (rsdt_info->pointer, + (acpi_size) rsdt_info->pointer->length); + } ACPI_MEM_FREE (rsdt_info); if (header) { diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c index f6de4ed..bb65877 100644 --- a/drivers/acpi/utilities/utmisc.c +++ b/drivers/acpi/utilities/utmisc.c @@ -787,7 +787,6 @@ acpi_ut_release_mutex ( acpi_mutex_handle mutex_id) { acpi_status status; - u32 i; u32 this_thread_id; @@ -814,25 +813,32 @@ acpi_ut_release_mutex ( return (AE_NOT_ACQUIRED); } - /* - * Deadlock prevention. Check if this thread owns any mutexes of value - * greater than this one. If so, the thread has violated the mutex - * ordering rule. This indicates a coding error somewhere in - * the ACPI subsystem code. - */ - for (i = mutex_id; i < MAX_MUTEX; i++) { - if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) { - if (i == mutex_id) { - continue; - } +#ifdef ACPI_MUTEX_DEBUG + { + u32 i; + /* + * Mutex debug code, for internal debugging only. + * + * Deadlock prevention. Check if this thread owns any mutexes of value + * greater than this one. If so, the thread has violated the mutex + * ordering rule. This indicates a coding error somewhere in + * the ACPI subsystem code. + */ + for (i = mutex_id; i < MAX_MUTEX; i++) { + if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) { + if (i == mutex_id) { + continue; + } - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Invalid release order: owns [%s], releasing [%s]\n", - acpi_ut_get_mutex_name (i), acpi_ut_get_mutex_name (mutex_id))); + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Invalid release order: owns [%s], releasing [%s]\n", + acpi_ut_get_mutex_name (i), acpi_ut_get_mutex_name (mutex_id))); - return (AE_RELEASE_DEADLOCK); + return (AE_RELEASE_DEADLOCK); + } } } +#endif /* Mark unlocked FIRST */ diff --git a/include/acpi/acconfig.h b/include/acpi/acconfig.h index a268c4a..6babcb1 100644 --- a/include/acpi/acconfig.h +++ b/include/acpi/acconfig.h @@ -64,7 +64,7 @@ /* Version string */ -#define ACPI_CA_VERSION 0x20050513 +#define ACPI_CA_VERSION 0x20050526 /* * OS name, used for the _OS object. The _OS object is essentially obsolete, diff --git a/include/acpi/acstruct.h b/include/acpi/acstruct.h index e6b9e36..4e92645 100644 --- a/include/acpi/acstruct.h +++ b/include/acpi/acstruct.h @@ -78,7 +78,7 @@ struct acpi_walk_state u8 return_used; u16 opcode; /* Current AML opcode */ u8 scope_depth; - u8 reserved1; + u8 pass_number; /* Parse pass during table load */ u32 arg_count; /* push for fixed or var args */ u32 aml_offset; u32 arg_types; |