From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/drivers/acpi/acpica/dswstate.c | 15 ++++++++++-----
1 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/kernel/drivers/acpi/acpica/dswstate.c b/kernel/drivers/acpi/acpica/dswstate.c
index c879380..f9ba769 100644
--- a/kernel/drivers/acpi/acpica/dswstate.c
+++ b/kernel/drivers/acpi/acpica/dswstate.c
@@ -3,7 +3,7 @@
*
* Module Name: dswstate - Dispatcher parse tree walk management routines
*
- * Copyright (C) 2000 - 2018, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
@@ -530,7 +530,7 @@
/* 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
@@ -576,9 +576,14 @@
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 */
--
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