diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-05-11 22:56:14 +0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2026-05-12 21:33:08 +0300 |
| commit | f06035ab324e52a845079c2e5f2380fa3cebde9b (patch) | |
| tree | 71beaa36baa51d964388482865df5f8dbac6158a | |
| parent | 793d2a057f7e7bc647c5401413f7bf7d4f08b969 (diff) | |
| download | linux-f06035ab324e52a845079c2e5f2380fa3cebde9b.tar.xz | |
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: ee1752590733 ("hwmon: (asus_atk0110) Convert ACPI driver to a platform one")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/2261594.irdbgypaU6@rafael.j.wysocki
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| -rw-r--r-- | drivers/hwmon/asus_atk0110.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c index 5688ff5f7c28..109318b0434d 100644 --- a/drivers/hwmon/asus_atk0110.c +++ b/drivers/hwmon/asus_atk0110.c @@ -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; |