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Commit 7b7bb90c authored by Guenter Roeck's avatar Guenter Roeck
Browse files

hwmon: (lm78) Convert to use devm_ functions 



Convert to use devm_ functions to reduce code size and simplify the code.

Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Acked-by: default avatarJean Delvare <khali@linux-fr.org>
parent e3ecb2ee

drivers/hwmon/lm78.c

+11 −25
Original line number Diff line number Diff line
@@ -660,7 +660,7 @@ static int lm78_i2c_probe(struct i2c_client *client, 
	struct lm78_data *data;

	int err;



	data = kzalloc(sizeof(struct lm78_data), GFP_KERNEL);

	data = devm_kzalloc(&client->dev, sizeof(struct lm78_data), GFP_KERNEL);

	if (!data)

		return -ENOMEM;
@@ -674,20 +674,18 @@ static int lm78_i2c_probe(struct i2c_client *client, 
	/* Register sysfs hooks */

	err = sysfs_create_group(&client->dev.kobj, &lm78_group);

	if (err)

		goto ERROR3;

		return err;



	data->hwmon_dev = hwmon_device_register(&client->dev);

	if (IS_ERR(data->hwmon_dev)) {

		err = PTR_ERR(data->hwmon_dev);

		goto ERROR4;

		goto error;

	}



	return 0;



ERROR4:

error:

	sysfs_remove_group(&client->dev.kobj, &lm78_group);

ERROR3:

	kfree(data);

	return err;

}
@@ -697,7 +695,6 @@ static int lm78_i2c_remove(struct i2c_client *client) 


	hwmon_device_unregister(data->hwmon_dev);

	sysfs_remove_group(&client->dev.kobj, &lm78_group);

	kfree(data);



	return 0;

}
@@ -844,16 +841,14 @@ static int __devinit lm78_isa_probe(struct platform_device *pdev) 


	/* Reserve the ISA region */

	res = platform_get_resource(pdev, IORESOURCE_IO, 0);

	if (!request_region(res->start + LM78_ADDR_REG_OFFSET, 2, "lm78")) {

		err = -EBUSY;

		goto exit;

	}

	if (!devm_request_region(&pdev->dev, res->start + LM78_ADDR_REG_OFFSET,

				 2, "lm78"))

		return -EBUSY;



	data = devm_kzalloc(&pdev->dev, sizeof(struct lm78_data), GFP_KERNEL);

	if (!data)

		return -ENOMEM;



	data = kzalloc(sizeof(struct lm78_data), GFP_KERNEL);

	if (!data) {

		err = -ENOMEM;

		goto exit_release_region;

	}

	mutex_init(&data->lock);

	data->isa_addr = res->start;

	platform_set_drvdata(pdev, data);
@@ -888,25 +883,16 @@ static int __devinit lm78_isa_probe(struct platform_device *pdev) 
 exit_remove_files:

	sysfs_remove_group(&pdev->dev.kobj, &lm78_group);

	device_remove_file(&pdev->dev, &dev_attr_name);

	kfree(data);

 exit_release_region:

	release_region(res->start + LM78_ADDR_REG_OFFSET, 2);

 exit:

	return err;

}



static int __devexit lm78_isa_remove(struct platform_device *pdev)

{

	struct lm78_data *data = platform_get_drvdata(pdev);

	struct resource *res;



	hwmon_device_unregister(data->hwmon_dev);

	sysfs_remove_group(&pdev->dev.kobj, &lm78_group);

	device_remove_file(&pdev->dev, &dev_attr_name);

	kfree(data);



	res = platform_get_resource(pdev, IORESOURCE_IO, 0);

	release_region(res->start + LM78_ADDR_REG_OFFSET, 2);



	return 0;

}