On Sun, 1 Sep 2024, Armin Wolf wrote:
> The BIOS can choose to return no event data in response to a
> WMI event, so the ACPI object passed to the WMI notify handler
> can be NULL.
>
> Check for such a situation and ignore the event in such a case.
>
> Fixes: 23902f98f8d4 ("hwmon: add HP WMI Sensors driver")
> Signed-off-by: Armin Wolf <W_Armin@xxxxxx>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
--
i.
> ---
> drivers/hwmon/hp-wmi-sensors.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/hwmon/hp-wmi-sensors.c b/drivers/hwmon/hp-wmi-sensors.c
> index b5325d0e72b9..dfa1d6926dea 100644
> --- a/drivers/hwmon/hp-wmi-sensors.c
> +++ b/drivers/hwmon/hp-wmi-sensors.c
> @@ -1637,6 +1637,8 @@ static void hp_wmi_notify(u32 value, void *context)
> goto out_unlock;
>
> wobj = out.pointer;
> + if (!wobj)
> + goto out_unlock;
>
> err = populate_event_from_wobj(dev, &event, wobj);
> if (err) {
> --
> 2.39.2
>
