Commit f06035ab authored by Rafael J. Wysocki's avatar Rafael J. Wysocki Committed by Guenter Roeck
Browse files

hwmon: (asus_atk0110) Check ACPI_COMPANION() against NULL 



Every platform driver can be forced to match a device that doesn't match
its list of device IDs because of device_match_driver_override(), so
platform drivers that rely on the existence of a device's ACPI companion
object need to verify its presence.

Accordingly, add a requisite ACPI_HANDLE() check against NULL to the
asus_atk0110 hwmon driver.

Fixes: ee175259 ("hwmon: (asus_atk0110) Convert ACPI driver to a platform one")
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/2261594.irdbgypaU6@rafael.j.wysocki


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 793d2a05

drivers/hwmon/asus_atk0110.c

+6 −1
Original line number Diff line number Diff line
@@ -1273,15 +1273,20 @@ static int atk_probe(struct platform_device *pdev) 
	struct acpi_buffer buf;

	union acpi_object *obj;

	struct atk_data *data;

	acpi_handle handle;



	dev_dbg(&pdev->dev, "adding...\n");



	handle = ACPI_HANDLE(&pdev->dev);

	if (!handle)

		return -ENODEV;



	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);

	if (!data)

		return -ENOMEM;



	data->dev = &pdev->dev;

	data->atk_handle = ACPI_HANDLE(&pdev->dev);

	data->atk_handle = handle;

	INIT_LIST_HEAD(&data->sensor_list);

	data->disable_ec = false;