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hwmon: raspberry-pi: Clean-up few drivers by using managed work init

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Few drivers implement remove call-back only for ensuring a delayed
work gets cancelled prior driver removal. Clean-up these by switching
to use devm_delayed_work_autocancel() instead.

This change is compile-tested only. All testing is appreciated.

Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Link: https://lore.kernel.org/r/4830f52d46278ea1c92ad7252f6050540346d8b7.1616506559.git.matti.vaittinen@fi.rohmeurope.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Matti Vaittinen 2021-03-23 15:57:25 +02:00 committed by Greg Kroah-Hartman
parent f94a5becab
commit 96dc2b31ab
1 changed files with 6 additions and 11 deletions
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17
drivers/hwmon/raspberrypi-hwmon.c
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@ -7,6 +7,7 @@
* Copyright (C) 2018 Stefan Wahren <stefan.wahren@i2se.com>
*/
#include <linux/device.h>
#include <linux/devm-helpers.h>
#include <linux/err.h>
#include <linux/hwmon.h>
#include <linux/module.h>
@ -106,6 +107,7 @@ static int rpi_hwmon_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct rpi_hwmon_data *data;
int ret;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
@ -119,7 +121,10 @@ static int rpi_hwmon_probe(struct platform_device *pdev)
&rpi_chip_info,
NULL);
INIT_DELAYED_WORK(&data->get_values_poll_work, get_values_poll);
ret = devm_delayed_work_autocancel(dev, &data->get_values_poll_work,
get_values_poll);
if (ret)
return ret;
platform_set_drvdata(pdev, data);
if (!PTR_ERR_OR_ZERO(data->hwmon_dev))
@ -128,18 +133,8 @@ static int rpi_hwmon_probe(struct platform_device *pdev)
return PTR_ERR_OR_ZERO(data->hwmon_dev);
}
static int rpi_hwmon_remove(struct platform_device *pdev)
{
struct rpi_hwmon_data *data = platform_get_drvdata(pdev);
cancel_delayed_work_sync(&data->get_values_poll_work);
return 0;
}
static struct platform_driver rpi_hwmon_driver = {
.probe = rpi_hwmon_probe,
.remove = rpi_hwmon_remove,
.driver = {
.name = "raspberrypi-hwmon",
},