diff options
Diffstat (limited to 'drivers/acpi/fan_hwmon.c')
| -rw-r--r-- | drivers/acpi/fan_hwmon.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/fan_hwmon.c b/drivers/acpi/fan_hwmon.c index bd0d31a398fa..e8d90605106e 100644 --- a/drivers/acpi/fan_hwmon.c +++ b/drivers/acpi/fan_hwmon.c @@ -43,6 +43,10 @@ static umode_t acpi_fan_hwmon_is_visible(const void *drvdata, enum hwmon_sensor_ case hwmon_fan_input: return 0444; case hwmon_fan_target: + /* Only acpi4 fans support fan control. */ + if (!fan->acpi4) + return 0; + /* * When in fine grain control mode, not every fan control value * has an associated fan performance state. @@ -57,6 +61,10 @@ static umode_t acpi_fan_hwmon_is_visible(const void *drvdata, enum hwmon_sensor_ case hwmon_power: switch (attr) { case hwmon_power_input: + /* Only acpi4 fans support fan control. */ + if (!fan->acpi4) + return 0; + /* * When in fine grain control mode, not every fan control value * has an associated fan performance state. |