diff options
Diffstat (limited to 'drivers/hwmon/lm77.c')
| -rw-r--r-- | drivers/hwmon/lm77.c | 73 |
1 files changed, 33 insertions, 40 deletions
diff --git a/drivers/hwmon/lm77.c b/drivers/hwmon/lm77.c index 0fca8613e7d..f82acf67acf 100644 --- a/drivers/hwmon/lm77.c +++ b/drivers/hwmon/lm77.c @@ -267,10 +267,9 @@ static const struct attribute_group lm77_group = { }; /* Return 0 if detection is successful, -ENODEV otherwise */ -static int lm77_detect(struct i2c_client *new_client, - struct i2c_board_info *info) +static int lm77_detect(struct i2c_client *client, struct i2c_board_info *info) { - struct i2c_adapter *adapter = new_client->adapter; + struct i2c_adapter *adapter = client->adapter; int i, cur, conf, hyst, crit, min, max; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | @@ -292,18 +291,18 @@ static int lm77_detect(struct i2c_client *new_client, */ /* addresses cycling */ - cur = i2c_smbus_read_word_data(new_client, 0); - conf = i2c_smbus_read_byte_data(new_client, 1); - hyst = i2c_smbus_read_word_data(new_client, 2); - crit = i2c_smbus_read_word_data(new_client, 3); - min = i2c_smbus_read_word_data(new_client, 4); - max = i2c_smbus_read_word_data(new_client, 5); + cur = i2c_smbus_read_word_data(client, 0); + conf = i2c_smbus_read_byte_data(client, 1); + hyst = i2c_smbus_read_word_data(client, 2); + crit = i2c_smbus_read_word_data(client, 3); + min = i2c_smbus_read_word_data(client, 4); + max = i2c_smbus_read_word_data(client, 5); for (i = 8; i <= 0xff; i += 8) { - if (i2c_smbus_read_byte_data(new_client, i + 1) != conf - || i2c_smbus_read_word_data(new_client, i + 2) != hyst - || i2c_smbus_read_word_data(new_client, i + 3) != crit - || i2c_smbus_read_word_data(new_client, i + 4) != min - || i2c_smbus_read_word_data(new_client, i + 5) != max) + if (i2c_smbus_read_byte_data(client, i + 1) != conf + || i2c_smbus_read_word_data(client, i + 2) != hyst + || i2c_smbus_read_word_data(client, i + 3) != crit + || i2c_smbus_read_word_data(client, i + 4) != min + || i2c_smbus_read_word_data(client, i + 5) != max) return -ENODEV; } @@ -320,17 +319,17 @@ static int lm77_detect(struct i2c_client *new_client, return -ENODEV; /* 0x06 and 0x07 return the last read value */ - cur = i2c_smbus_read_word_data(new_client, 0); - if (i2c_smbus_read_word_data(new_client, 6) != cur - || i2c_smbus_read_word_data(new_client, 7) != cur) + cur = i2c_smbus_read_word_data(client, 0); + if (i2c_smbus_read_word_data(client, 6) != cur + || i2c_smbus_read_word_data(client, 7) != cur) return -ENODEV; - hyst = i2c_smbus_read_word_data(new_client, 2); - if (i2c_smbus_read_word_data(new_client, 6) != hyst - || i2c_smbus_read_word_data(new_client, 7) != hyst) + hyst = i2c_smbus_read_word_data(client, 2); + if (i2c_smbus_read_word_data(client, 6) != hyst + || i2c_smbus_read_word_data(client, 7) != hyst) return -ENODEV; - min = i2c_smbus_read_word_data(new_client, 4); - if (i2c_smbus_read_word_data(new_client, 6) != min - || i2c_smbus_read_word_data(new_client, 7) != min) + min = i2c_smbus_read_word_data(client, 4); + if (i2c_smbus_read_word_data(client, 6) != min + || i2c_smbus_read_word_data(client, 7) != min) return -ENODEV; strlcpy(info->type, "lm77", I2C_NAME_SIZE); @@ -338,31 +337,29 @@ static int lm77_detect(struct i2c_client *new_client, return 0; } -static int lm77_probe(struct i2c_client *new_client, - const struct i2c_device_id *id) +static int lm77_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct lm77_data *data; int err; - data = kzalloc(sizeof(struct lm77_data), GFP_KERNEL); - if (!data) { - err = -ENOMEM; - goto exit; - } + data = devm_kzalloc(dev, sizeof(struct lm77_data), GFP_KERNEL); + if (!data) + return -ENOMEM; - i2c_set_clientdata(new_client, data); + i2c_set_clientdata(client, data); data->valid = 0; mutex_init(&data->update_lock); /* Initialize the LM77 chip */ - lm77_init_client(new_client); + lm77_init_client(client); /* Register sysfs hooks */ - err = sysfs_create_group(&new_client->dev.kobj, &lm77_group); + err = sysfs_create_group(&dev->kobj, &lm77_group); if (err) - goto exit_free; + return err; - data->hwmon_dev = hwmon_device_register(&new_client->dev); + data->hwmon_dev = hwmon_device_register(dev); if (IS_ERR(data->hwmon_dev)) { err = PTR_ERR(data->hwmon_dev); goto exit_remove; @@ -371,10 +368,7 @@ static int lm77_probe(struct i2c_client *new_client, return 0; exit_remove: - sysfs_remove_group(&new_client->dev.kobj, &lm77_group); -exit_free: - kfree(data); -exit: + sysfs_remove_group(&dev->kobj, &lm77_group); return err; } @@ -383,7 +377,6 @@ static int lm77_remove(struct i2c_client *client) struct lm77_data *data = i2c_get_clientdata(client); hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &lm77_group); - kfree(data); return 0; } |