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Input: adxl34x - switch to using managed resources

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Switch the driver to use managed resources to simplify error handling.

Link: https://lore.kernel.org/r/20240610164301.1048482-3-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov 2024-06-10 09:42:59 -07:00
parent 8f275fc73d
commit 985addc133
4 changed files with 17 additions and 53 deletions
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8
drivers/input/misc/adxl34x-i2c.c
View File

@ -98,13 +98,6 @@ static int adxl34x_i2c_probe(struct i2c_client *client)
return 0;
}
static void adxl34x_i2c_remove(struct i2c_client *client)
{
struct adxl34x *ac = i2c_get_clientdata(client);
adxl34x_remove(ac);
}
static const struct i2c_device_id adxl34x_id[] = {
{ "adxl34x" },
{ }
@ -137,7 +130,6 @@ static struct i2c_driver adxl34x_driver = {
.of_match_table = adxl34x_of_id,
},
.probe = adxl34x_i2c_probe,
.remove = adxl34x_i2c_remove,
.id_table = adxl34x_id,
};

8
drivers/input/misc/adxl34x-spi.c
View File

@ -87,13 +87,6 @@ static int adxl34x_spi_probe(struct spi_device *spi)
return 0;
}
static void adxl34x_spi_remove(struct spi_device *spi)
{
struct adxl34x *ac = spi_get_drvdata(spi);
adxl34x_remove(ac);
}
static struct spi_driver adxl34x_driver = {
.driver = {
.name = "adxl34x",
@ -101,7 +94,6 @@ static struct spi_driver adxl34x_driver = {
.pm = pm_sleep_ptr(&adxl34x_pm),
},
.probe = adxl34x_spi_probe,
.remove = adxl34x_spi_remove,
};
module_spi_driver(adxl34x_driver);

51
drivers/input/misc/adxl34x.c
View File

@ -707,21 +707,21 @@ struct adxl34x *adxl34x_probe(struct device *dev, int irq,
struct adxl34x *ac;
struct input_dev *input_dev;
const struct adxl34x_platform_data *pdata;
int err, range, i;
int error, range, i;
int revid;
if (!irq) {
dev_err(dev, "no IRQ?\n");
err = -ENODEV;
goto err_out;
return ERR_PTR(-ENODEV);
}
ac = kzalloc(sizeof(*ac), GFP_KERNEL);
input_dev = input_allocate_device();
if (!ac || !input_dev) {
err = -ENOMEM;
goto err_free_mem;
}
ac = devm_kzalloc(dev, sizeof(*ac), GFP_KERNEL);
if (!ac)
return ERR_PTR(-ENOMEM);
input_dev = devm_input_allocate_device(dev);
if (!input_dev)
return ERR_PTR(-ENOMEM);
ac->fifo_delay = fifo_delay_default;
@ -754,14 +754,12 @@ struct adxl34x *adxl34x_probe(struct device *dev, int irq,
break;
default:
dev_err(dev, "Failed to probe %s\n", input_dev->name);
err = -ENODEV;
goto err_free_mem;
return ERR_PTR(-ENODEV);
}
snprintf(ac->phys, sizeof(ac->phys), "%s/input0", dev_name(dev));
input_dev->phys = ac->phys;
input_dev->dev.parent = dev;
input_dev->id.product = ac->model;
input_dev->id.bustype = bops->bustype;
input_dev->open = adxl34x_input_open;
@ -816,16 +814,16 @@ struct adxl34x *adxl34x_probe(struct device *dev, int irq,
AC_WRITE(ac, POWER_CTL, 0);
err = request_threaded_irq(ac->irq, NULL, adxl34x_irq,
error = devm_request_threaded_irq(dev, ac->irq, NULL, adxl34x_irq,
IRQF_ONESHOT, dev_name(dev), ac);
if (err) {
if (error) {
dev_err(dev, "irq %d busy?\n", ac->irq);
goto err_free_mem;
return ERR_PTR(error);
}
err = input_register_device(input_dev);
if (err)
goto err_free_irq;
error = input_register_device(input_dev);
if (error)
return ERR_PTR(error);
AC_WRITE(ac, OFSX, pdata->x_axis_offset);
ac->hwcal.x = pdata->x_axis_offset;
@ -884,26 +882,9 @@ struct adxl34x *adxl34x_probe(struct device *dev, int irq,
ac->pdata.power_mode &= (PCTL_AUTO_SLEEP | PCTL_LINK);
return ac;
err_free_irq:
free_irq(ac->irq, ac);
err_free_mem:
input_free_device(input_dev);
kfree(ac);
err_out:
return ERR_PTR(err);
}
EXPORT_SYMBOL_GPL(adxl34x_probe);
void adxl34x_remove(struct adxl34x *ac)
{
free_irq(ac->irq, ac);
input_unregister_device(ac->input);
dev_dbg(ac->dev, "unregistered accelerometer\n");
kfree(ac);
}
EXPORT_SYMBOL_GPL(adxl34x_remove);
EXPORT_GPL_SIMPLE_DEV_PM_OPS(adxl34x_pm, adxl34x_suspend, adxl34x_resume);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");

1
drivers/input/misc/adxl34x.h
View File

@ -23,7 +23,6 @@ struct adxl34x_bus_ops {
struct adxl34x *adxl34x_probe(struct device *dev, int irq,
bool fifo_delay_default,
const struct adxl34x_bus_ops *bops);
void adxl34x_remove(struct adxl34x *ac);
extern const struct dev_pm_ops adxl34x_pm;
extern const struct attribute_group *adxl34x_groups[];