Armin Wolf 6ea2e8743e platform/x86: msi-wmi-platform: Workaround a ACPI firmware bug ... commit baf2f2c2b4c8e1d398173acd4d2fa9131a86b84e upstream. The ACPI byte code inside the ACPI control method responsible for handling the WMI method calls uses a global buffer for constructing the return value, yet the ACPI control method itself is not marked as "Serialized". This means that calling WMI methods on this WMI device is not thread-safe, as concurrent WMI method calls will corrupt the global buffer. Fix this by serializing the WMI method calls using a mutex. Cc: stable@vger.kernel.org # 6.x.x: 912d614ac99e: platform/x86: msi-wmi-platform: Rename "data" variable Fixes: 9c0beb6b29 ("platform/x86: wmi: Add MSI WMI Platform driver") Tested-by: Antheas Kapenekakis <lkml@antheas.dev> Signed-off-by: Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20250414140453.7691-2-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2025-04-25 10:48:04 +02:00
..
devices	platform/x86: msi-wmi-platform: Workaround a ACPI firmware bug	2025-04-25 10:48:04 +02:00
acpi-interface.rst	platform/x86: wmi: Update documentation regarding _WED	2024-02-27 14:44:31 +02:00
driver-development-guide.rst	platform/x86: wmi: Add driver development guide	2024-04-08 17:45:36 +02:00
index.rst	platform/x86: wmi: Add driver development guide	2024-04-08 17:45:36 +02:00