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hwmon: (tmp102) Introduce dev variable in probe function

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The pointer to client->dev is used several times in the probe function.
Simplify code by introducing a separate variable for it.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2014-02-02 14:22:30 -08:00
parent aa9bcddada
commit fbd9af164c
1 changed files with 14 additions and 14 deletions
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28
drivers/hwmon/tmp102.c
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@ -162,17 +162,18 @@ static const struct attribute_group tmp102_attr_group = {
static int tmp102_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct tmp102 *tmp102;
int status;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_WORD_DATA)) {
dev_err(&client->dev,
dev_err(dev,
"adapter doesn't support SMBus word transactions\n");
return -ENODEV;
}
tmp102 = devm_kzalloc(&client->dev, sizeof(*tmp102), GFP_KERNEL);
tmp102 = devm_kzalloc(dev, sizeof(*tmp102), GFP_KERNEL);
if (!tmp102)
return -ENOMEM;
@ -180,54 +181,53 @@ static int tmp102_probe(struct i2c_client *client,
status = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
if (status < 0) {
dev_err(&client->dev, "error reading config register\n");
dev_err(dev, "error reading config register\n");
return status;
}
tmp102->config_orig = status;
status = i2c_smbus_write_word_swapped(client, TMP102_CONF_REG,
TMP102_CONFIG);
if (status < 0) {
dev_err(&client->dev, "error writing config register\n");
dev_err(dev, "error writing config register\n");
goto fail_restore_config;
}
status = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
if (status < 0) {
dev_err(&client->dev, "error reading config register\n");
dev_err(dev, "error reading config register\n");
goto fail_restore_config;
}
status &= ~TMP102_CONFIG_RD_ONLY;
if (status != TMP102_CONFIG) {
dev_err(&client->dev, "config settings did not stick\n");
dev_err(dev, "config settings did not stick\n");
status = -ENODEV;
goto fail_restore_config;
}
tmp102->last_update = jiffies - HZ;
mutex_init(&tmp102->lock);
status = sysfs_create_group(&client->dev.kobj, &tmp102_attr_group);
status = sysfs_create_group(&dev->kobj, &tmp102_attr_group);
if (status) {
dev_dbg(&client->dev, "could not create sysfs files\n");
dev_dbg(dev, "could not create sysfs files\n");
goto fail_restore_config;
}
tmp102->hwmon_dev = hwmon_device_register(&client->dev);
tmp102->hwmon_dev = hwmon_device_register(dev);
if (IS_ERR(tmp102->hwmon_dev)) {
dev_dbg(&client->dev, "unable to register hwmon device\n");
dev_dbg(dev, "unable to register hwmon device\n");
status = PTR_ERR(tmp102->hwmon_dev);
goto fail_remove_sysfs;
}
tmp102->tz = thermal_zone_of_sensor_register(&client->dev, 0,
&client->dev,
tmp102->tz = thermal_zone_of_sensor_register(dev, 0, dev,
tmp102_read_temp, NULL);
if (IS_ERR(tmp102->tz))
tmp102->tz = NULL;
dev_info(&client->dev, "initialized\n");
dev_info(dev, "initialized\n");
return 0;
fail_remove_sysfs:
sysfs_remove_group(&client->dev.kobj, &tmp102_attr_group);
sysfs_remove_group(&dev->kobj, &tmp102_attr_group);
fail_restore_config:
i2c_smbus_write_word_swapped(client, TMP102_CONF_REG,
tmp102->config_orig);