[PATCH v10 04/16] platform/x86: lenovo-wmi-other: Zero initialize WMI arguments

Derek J. Clark
2026-04-12T21:11:27Z

Adds explicit initialization of wmi_method_args_32 declarations with
zero values to prevent uninitialized data from being sent to the device
BIOS when passed.

No functional change intended.
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Fixes: 22024ac5366f ("platform/x86: Add Lenovo Gamezone WMI Driver")
Fixes: edc4b183b794 ("platform/x86: Add Lenovo Other Mode WMI Driver")
Reported-by: Rong Zhang <i@rong.moe>
Closes: https://lore.kernel.org/platform-driver-x86/95c7e7b539dd0af41189c754fcd35cec5b6fe182.camel@rong.moe/
Cc: stable@vger.kernel.org
Reviewed-by: Rong Zhang <i@rong.moe>
Tested-by: Rong Zhang <i@rong.moe>
Signed-off-by: Derek J. Clark <derekjohn.clark@gmail.com>
---
v7:
- Include lwmi_gz_profile_set() fix as well.
---
drivers/platform/x86/lenovo/wmi-gamezone.c | 2 +-
drivers/platform/x86/lenovo/wmi-other.c | 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/platform/x86/lenovo/wmi-gamezone.c b/drivers/platform/x86/lenovo/wmi-gamezone.c
index 381836d29a96..ca559e6c031d 100644
--- a/drivers/platform/x86/lenovo/wmi-gamezone.c
+++ b/drivers/platform/x86/lenovo/wmi-gamezone.c
@@ -203,7 +203,7 @@ static int lwmi_gz_profile_set(struct device *dev,
enum platform_profile_option profile)
{
struct lwmi_gz_priv *priv = dev_get_drvdata(dev);
- struct wmi_method_args_32 args;
+ struct wmi_method_args_32 args = {};
enum thermal_mode mode;
int ret;

diff --git a/drivers/platform/x86/lenovo/wmi-other.c b/drivers/platform/x86/lenovo/wmi-other.c
index a6be3463341c..1e06b894cfcc 100644
--- a/drivers/platform/x86/lenovo/wmi-other.c
+++ b/drivers/platform/x86/lenovo/wmi-other.c
@@ -166,7 +166,7 @@ MODULE_PARM_DESC(relax_fan_constraint,
*/
static int lwmi_om_fan_get_set(struct lwmi_om_priv *priv, int channel, u32 *val, bool set)
{
- struct wmi_method_args_32 args;
+ struct wmi_method_args_32 args = {};
u32 method_id, retval;
int err;

@@ -773,7 +773,7 @@ static ssize_t attr_current_value_store(struct kobject *kobj,
struct tunable_attr_01 *tunable_attr)
{
struct lwmi_om_priv *priv = dev_get_drvdata(tunable_attr->dev);
- struct wmi_method_args_32 args;
+ struct wmi_method_args_32 args = {};
struct capdata01 capdata;
enum thermal_mode mode;
u32 attribute_id;
@@ -836,7 +836,7 @@ static ssize_t attr_current_value_show(struct kobject *kobj,
struct tunable_attr_01 *tunable_attr)
{
struct lwmi_om_priv *priv = dev_get_drvdata(tunable_attr->dev);
- struct wmi_method_args_32 args;
+ struct wmi_method_args_32 args = {};
enum thermal_mode mode;
u32 attribute_id;
int retval;
--
2.53.0