From: Aleksandrs Vinarskis <alex.vinarskis@gmail.com>
Date: Sun, 11 Aug 2024 21:33:44 +0000 (+0200)
Subject: ACPICA: iasl: handle empty connection_node
X-Git-Tag: v6.10.14~361
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a0ec84cf0da98ed50dc785a27d7b4cb794e1629;p=thirdparty%2Fkernel%2Fstable.git

ACPICA: iasl: handle empty connection_node

[ Upstream commit a0a2459b79414584af6c46dd8c6f866d8f1aa421 ]

ACPICA commit 6c551e2c9487067d4b085333e7fe97e965a11625

Link: https://github.com/acpica/acpica/commit/6c551e2c
Signed-off-by: Aleksandrs Vinarskis <alex.vinarskis@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/acpi/acpica/exprep.c b/drivers/acpi/acpica/exprep.c
index 08196fa17080e..82b1fa2d201fe 100644
--- a/drivers/acpi/acpica/exprep.c
+++ b/drivers/acpi/acpica/exprep.c
@@ -437,6 +437,9 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
 
 		if (info->connection_node) {
 			second_desc = info->connection_node->object;
+			if (second_desc == NULL) {
+				break;
+			}
 			if (!(second_desc->common.flags & AOPOBJ_DATA_VALID)) {
 				status =
 				    acpi_ds_get_buffer_arguments(second_desc);