diff options
Diffstat (limited to 'drivers/acpi/acpica/dswstate.c')
| -rw-r--r-- | drivers/acpi/acpica/dswstate.c | 67 |
1 files changed, 19 insertions, 48 deletions
diff --git a/drivers/acpi/acpica/dswstate.c b/drivers/acpi/acpica/dswstate.c index ecb12e2137ff..02aaddb89df9 100644 --- a/drivers/acpi/acpica/dswstate.c +++ b/drivers/acpi/acpica/dswstate.c @@ -1,46 +1,12 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 /****************************************************************************** * * Module Name: dswstate - Dispatcher parse tree walk management routines * + * Copyright (C) 2000 - 2025, Intel Corp. + * *****************************************************************************/ -/* - * Copyright (C) 2000 - 2013, Intel Corp. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - #include <acpi/acpi.h> #include "accommon.h" #include "acparser.h" @@ -143,8 +109,8 @@ acpi_ds_result_pop(union acpi_operand_object **object, ******************************************************************************/ acpi_status -acpi_ds_result_push(union acpi_operand_object * object, - struct acpi_walk_state * walk_state) +acpi_ds_result_push(union acpi_operand_object *object, + struct acpi_walk_state *walk_state) { union acpi_generic_state *state; acpi_status status; @@ -180,8 +146,8 @@ acpi_ds_result_push(union acpi_operand_object * object, if (!object) { ACPI_ERROR((AE_INFO, - "Null Object! Obj=%p State=%p Num=%u", - object, walk_state, walk_state->result_count)); + "Null Object! State=%p Num=%u", + walk_state, walk_state->result_count)); return (AE_BAD_PARAMETER); } @@ -307,7 +273,7 @@ static acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state *walk_state) ******************************************************************************/ acpi_status -acpi_ds_obj_stack_push(void *object, struct acpi_walk_state * walk_state) +acpi_ds_obj_stack_push(void *object, struct acpi_walk_state *walk_state) { ACPI_FUNCTION_NAME(ds_obj_stack_push); @@ -354,7 +320,7 @@ acpi_ds_obj_stack_push(void *object, struct acpi_walk_state * walk_state) ******************************************************************************/ acpi_status -acpi_ds_obj_stack_pop(u32 pop_count, struct acpi_walk_state * walk_state) +acpi_ds_obj_stack_pop(u32 pop_count, struct acpi_walk_state *walk_state) { u32 i; @@ -411,7 +377,7 @@ acpi_ds_obj_stack_pop_and_delete(u32 pop_count, return; } - for (i = (s32) pop_count - 1; i >= 0; i--) { + for (i = (s32)pop_count - 1; i >= 0; i--) { if (walk_state->num_operands == 0) { return; } @@ -564,7 +530,7 @@ struct acpi_walk_state *acpi_ds_create_walk_state(acpi_owner_id owner_id, /* Init the method args/local */ -#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY)) +#ifndef ACPI_CONSTANT_EVAL_ONLY acpi_ds_method_data_init(walk_state); #endif @@ -610,9 +576,14 @@ acpi_ds_init_aml_walk(struct acpi_walk_state *walk_state, ACPI_FUNCTION_TRACE(ds_init_aml_walk); walk_state->parser_state.aml = - walk_state->parser_state.aml_start = aml_start; - walk_state->parser_state.aml_end = - walk_state->parser_state.pkg_end = aml_start + aml_length; + walk_state->parser_state.aml_start = + walk_state->parser_state.aml_end = + walk_state->parser_state.pkg_end = aml_start; + /* Avoid undefined behavior: applying zero offset to null pointer */ + if (aml_length != 0) { + walk_state->parser_state.aml_end += aml_length; + walk_state->parser_state.pkg_end += aml_length; + } /* The next_op of the next_walk will be the beginning of the method */ |