Commit 638196d4 authored by Bruno Thomsen's avatar Bruno Thomsen Committed by Guenter Roeck
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hwmon: (tmp421) Check error when loading label from dt 



Add error checking when loading temperature channel label defined
in device tree. Handling of error from of_property_read_string()
is inspired by lm90 driver and therefor contain same error string.

Signed-off-by: default avatarBruno Thomsen <bruno.thomsen@gmail.com>
Link: https://lore.kernel.org/r/20251111144406.7489-1-bruno.thomsen@gmail.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 71a117d2

drivers/hwmon/tmp421.c

+5 −1
Original line number Diff line number Diff line
@@ -369,7 +369,11 @@ static int tmp421_probe_child_from_dt(struct i2c_client *client, 
		return -EINVAL;

	}



	of_property_read_string(child, "label", &data->channel[i].label);

	err = of_property_read_string(child, "label", &data->channel[i].label);

	if (err == -ENODATA || err == -EILSEQ) {

		dev_err(dev, "invalid label property in %pOFn\n", child);

		return err;

	}

	if (data->channel[i].label)

		data->temp_config[i] |= HWMON_T_LABEL;