Commit 8eb6d90f authored by Guenter Roeck's avatar Guenter Roeck
Browse files

hwmon: (tmp401) Reset valid flag when resetting temperature history 



Cached data is no longer valid after resetting the temperature history.

Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Acked-by: default avatarJean Delvare <khali@linux-fr.org>
parent 14f2a665

drivers/hwmon/tmp401.c

+6 −2
Original line number Diff line number Diff line
@@ -351,6 +351,8 @@ static ssize_t store_temp_crit_hyst(struct device *dev, struct device_attribute 
static ssize_t reset_temp_history(struct device *dev,

	struct device_attribute	*devattr, const char *buf, size_t count)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct tmp401_data *data = i2c_get_clientdata(client);

	long val;



	if (kstrtol(buf, 10, &val))
@@ -362,8 +364,10 @@ static ssize_t reset_temp_history(struct device *dev, 
			val);

		return -EINVAL;

	}

	i2c_smbus_write_byte_data(to_i2c_client(dev),

				  TMP401_TEMP_MSB_WRITE[5][0], val);

	mutex_lock(&data->update_lock);

	i2c_smbus_write_byte_data(client, TMP401_TEMP_MSB_WRITE[5][0], val);

	data->valid = 0;

	mutex_unlock(&data->update_lock);



	return count;

}