Hi, On Mon, Mar 08, 2021 at 10:42:43AM +0200, Matti Vaittinen wrote: > 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. > > Signed-off-by: Matti Vaittinen <[email protected]> > ---
LGTM. This looks like it might result in merge conflicts when being applied to another tree, so I need an immutable branch. Acked-by: Sebastian Reichel <[email protected]> -- Sebastian > drivers/power/supply/axp20x_usb_power.c | 15 +++++---------- > drivers/power/supply/bq24735-charger.c | 18 ++++++------------ > drivers/power/supply/ltc2941-battery-gauge.c | 20 +++++++------------- > drivers/power/supply/sbs-battery.c | 16 +++++----------- > 4 files changed, 23 insertions(+), 46 deletions(-) > > diff --git a/drivers/power/supply/axp20x_usb_power.c > b/drivers/power/supply/axp20x_usb_power.c > index 8933ae26c3d6..4259709e3491 100644 > --- a/drivers/power/supply/axp20x_usb_power.c > +++ b/drivers/power/supply/axp20x_usb_power.c > @@ -8,6 +8,7 @@ > > #include <linux/bitops.h> > #include <linux/device.h> > +#include <linux/devm-helpers.h> > #include <linux/init.h> > #include <linux/interrupt.h> > #include <linux/kernel.h> > @@ -646,21 +647,16 @@ static int axp20x_usb_power_probe(struct > platform_device *pdev) > } > } > > + ret = devm_delayed_work_autocancel(&pdev->dev, &power->vbus_detect, > + axp20x_usb_power_poll_vbus); > + if (ret) > + return ret; > if (axp20x_usb_vbus_needs_polling(power)) > queue_delayed_work(system_power_efficient_wq, > &power->vbus_detect, 0); > > return 0; > } > > -static int axp20x_usb_power_remove(struct platform_device *pdev) > -{ > - struct axp20x_usb_power *power = platform_get_drvdata(pdev); > - > - cancel_delayed_work_sync(&power->vbus_detect); > - > - return 0; > -} > - > static const struct of_device_id axp20x_usb_power_match[] = { > { > .compatible = "x-powers,axp202-usb-power-supply", > @@ -680,7 +676,6 @@ MODULE_DEVICE_TABLE(of, axp20x_usb_power_match); > > static struct platform_driver axp20x_usb_power_driver = { > .probe = axp20x_usb_power_probe, > - .remove = axp20x_usb_power_remove, > .driver = { > .name = DRVNAME, > .of_match_table = axp20x_usb_power_match, > diff --git a/drivers/power/supply/bq24735-charger.c > b/drivers/power/supply/bq24735-charger.c > index ab2f4bf8f603..b5d619db79f6 100644 > --- a/drivers/power/supply/bq24735-charger.c > +++ b/drivers/power/supply/bq24735-charger.c > @@ -17,6 +17,7 @@ > * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. > */ > > +#include <linux/devm-helpers.h> > #include <linux/err.h> > #include <linux/i2c.h> > #include <linux/init.h> > @@ -473,7 +474,11 @@ static int bq24735_charger_probe(struct i2c_client > *client, > if (!charger->poll_interval) > return 0; > > - INIT_DELAYED_WORK(&charger->poll, bq24735_poll); > + ret = devm_delayed_work_autocancel(&client->dev, &charger->poll, > + bq24735_poll); > + if (ret) > + return ret; > + > schedule_delayed_work(&charger->poll, > msecs_to_jiffies(charger->poll_interval)); > } > @@ -481,16 +486,6 @@ static int bq24735_charger_probe(struct i2c_client > *client, > return 0; > } > > -static int bq24735_charger_remove(struct i2c_client *client) > -{ > - struct bq24735 *charger = i2c_get_clientdata(client); > - > - if (charger->poll_interval) > - cancel_delayed_work_sync(&charger->poll); > - > - return 0; > -} > - > static const struct i2c_device_id bq24735_charger_id[] = { > { "bq24735-charger", 0 }, > {} > @@ -509,7 +504,6 @@ static struct i2c_driver bq24735_charger_driver = { > .of_match_table = bq24735_match_ids, > }, > .probe = bq24735_charger_probe, > - .remove = bq24735_charger_remove, > .id_table = bq24735_charger_id, > }; > > diff --git a/drivers/power/supply/ltc2941-battery-gauge.c > b/drivers/power/supply/ltc2941-battery-gauge.c > index 10cd617516ec..09f3e78af4e0 100644 > --- a/drivers/power/supply/ltc2941-battery-gauge.c > +++ b/drivers/power/supply/ltc2941-battery-gauge.c > @@ -8,6 +8,7 @@ > * Author: Auryn Verwegen > * Author: Mike Looijmans > */ > +#include <linux/devm-helpers.h> > #include <linux/kernel.h> > #include <linux/module.h> > #include <linux/of_device.h> > @@ -445,15 +446,6 @@ static enum power_supply_property ltc294x_properties[] = > { > POWER_SUPPLY_PROP_CURRENT_NOW, > }; > > -static int ltc294x_i2c_remove(struct i2c_client *client) > -{ > - struct ltc294x_info *info = i2c_get_clientdata(client); > - > - cancel_delayed_work_sync(&info->work); > - power_supply_unregister(info->supply); > - return 0; > -} > - > static int ltc294x_i2c_probe(struct i2c_client *client, > const struct i2c_device_id *id) > { > @@ -547,7 +539,10 @@ static int ltc294x_i2c_probe(struct i2c_client *client, > > psy_cfg.drv_data = info; > > - INIT_DELAYED_WORK(&info->work, ltc294x_work); > + ret = devm_delayed_work_autocancel(&client->dev, &info->work, > + ltc294x_work); > + if (ret) > + return ret; > > ret = ltc294x_reset(info, prescaler_exp); > if (ret < 0) { > @@ -555,8 +550,8 @@ static int ltc294x_i2c_probe(struct i2c_client *client, > return ret; > } > > - info->supply = power_supply_register(&client->dev, &info->supply_desc, > - &psy_cfg); > + info->supply = devm_power_supply_register(&client->dev, > + &info->supply_desc, &psy_cfg); > if (IS_ERR(info->supply)) { > dev_err(&client->dev, "failed to register ltc2941\n"); > return PTR_ERR(info->supply); > @@ -655,7 +650,6 @@ static struct i2c_driver ltc294x_driver = { > .pm = LTC294X_PM_OPS, > }, > .probe = ltc294x_i2c_probe, > - .remove = ltc294x_i2c_remove, > .shutdown = ltc294x_i2c_shutdown, > .id_table = ltc294x_i2c_id, > }; > diff --git a/drivers/power/supply/sbs-battery.c > b/drivers/power/supply/sbs-battery.c > index b6a538ebb378..70ea404b2a36 100644 > --- a/drivers/power/supply/sbs-battery.c > +++ b/drivers/power/supply/sbs-battery.c > @@ -7,6 +7,7 @@ > > #include <linux/bits.h> > #include <linux/delay.h> > +#include <linux/devm-helpers.h> > #include <linux/err.h> > #include <linux/gpio/consumer.h> > #include <linux/i2c.h> > @@ -1165,7 +1166,10 @@ static int sbs_probe(struct i2c_client *client) > } > } > > - INIT_DELAYED_WORK(&chip->work, sbs_delayed_work); > + rc = devm_delayed_work_autocancel(&client->dev, &chip->work, > + sbs_delayed_work); > + if (rc) > + return rc; > > chip->power_supply = devm_power_supply_register(&client->dev, sbs_desc, > &psy_cfg); > @@ -1185,15 +1189,6 @@ static int sbs_probe(struct i2c_client *client) > return rc; > } > > -static int sbs_remove(struct i2c_client *client) > -{ > - struct sbs_info *chip = i2c_get_clientdata(client); > - > - cancel_delayed_work_sync(&chip->work); > - > - return 0; > -} > - > #if defined CONFIG_PM_SLEEP > > static int sbs_suspend(struct device *dev) > @@ -1248,7 +1243,6 @@ MODULE_DEVICE_TABLE(of, sbs_dt_ids); > > static struct i2c_driver sbs_battery_driver = { > .probe_new = sbs_probe, > - .remove = sbs_remove, > .alert = sbs_alert, > .id_table = sbs_id, > .driver = { > -- > 2.25.4 > > > -- > Matti Vaittinen, Linux device drivers > ROHM Semiconductors, Finland SWDC > Kiviharjunlenkki 1E > 90220 OULU > FINLAND > > ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~ > Simon says - in Latin please. > ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~ > Thanks to Simon Glass for the translation =]
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