linux-kernel - [PATCH 2/2] hwmon: (asus-ec-sensors) increase timeout for locking ACPI mutex

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20250923192935.11339-3-eugene.shalygin@gmail.com>
Date: Tue, 23 Sep 2025 21:26:56 +0200
From: Eugene Shalygin <eugene.shalygin@...il.com>
To: eugene.shalygin@...il.com
Cc: Ben Copeland <ben.copeland@...aro.org>,
	Guenter Roeck <linux@...ck-us.net>,
	Jonathan Corbet <corbet@....net>,
	linux-hwmon@...r.kernel.org,
	linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] hwmon: (asus-ec-sensors) increase timeout for locking ACPI mutex

From: Ben Copeland <ben.copeland@...aro.org>

Some motherboards require more time to acquire the ACPI mutex,
causing "Failed to acquire mutex" messages to appear in the kernel log.
Increase the timeout from 500ms to 800ms to accommodate these cases.

Signed-off-by: Ben Copeland <ben.copeland@...aro.org>
Signed-off-by: Eugene Shalygin <eugene.shalygin@...il.com>
---
 drivers/hwmon/asus-ec-sensors.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/asus-ec-sensors.c b/drivers/hwmon/asus-ec-sensors.c
index ce3ea0333fd9..34a8f6b834c9 100644
--- a/drivers/hwmon/asus-ec-sensors.c
+++ b/drivers/hwmon/asus-ec-sensors.c
@@ -49,7 +49,7 @@ static char *mutex_path_override;
  */
 #define ASUS_EC_MAX_BANK	3
 
-#define ACPI_LOCK_DELAY_MS	500
+#define ACPI_LOCK_DELAY_MS	800
 
 /* ACPI mutex for locking access to the EC for the firmware */
 #define ASUS_HW_ACCESS_MUTEX_ASMX	"\\AMW0.ASMX"
-- 
2.51.0