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platform/x86: dell-ddv: Improve error handling 

If for some reason a external function returns -ENODEV,
no error message is being displayed because the driver
assumes that -ENODEV can only be returned internally if
no sensors, etc where found.
Fix this by explicitly returning 0 in such a case since
missing hardware is no error. Also remove the now obsolete
check for -ENODEV.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20230707010333.12954-1-W_Armin@gmx.de
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Armin Wolf 2023-07-07 03:03:32 +02:00 committed by Hans de Goede
parent 5d3acd9d7a
commit 8c48938375
1 changed files with 4 additions and 3 deletions
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7
drivers/platform/x86/dell/dell-wmi-ddv.c
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@ -616,7 +616,8 @@ static int dell_wmi_ddv_hwmon_add(struct dell_wmi_ddv_data *data)
}
if (index < 2) {
ret = -ENODEV;
/* Finding no available sensors is not an error */
ret = 0;
goto err_release;
}
@ -841,13 +842,13 @@ static int dell_wmi_ddv_probe(struct wmi_device *wdev, const void *context)
if (IS_REACHABLE(CONFIG_ACPI_BATTERY)) {
ret = dell_wmi_ddv_battery_add(data);
if (ret < 0 && ret != -ENODEV)
if (ret < 0)
dev_warn(&wdev->dev, "Unable to register ACPI battery hook: %d\n", ret);
}
if (IS_REACHABLE(CONFIG_HWMON)) {
ret = dell_wmi_ddv_hwmon_add(data);
if (ret < 0 && ret != -ENODEV)
if (ret < 0)
dev_warn(&wdev->dev, "Unable to register hwmon interface: %d\n", ret);
}