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mfd/bus: sunxi-rsb: Make .remove() callback return void

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The driver core ignores the return value of struct device_driver::remove
because there is only little that can be done. To simplify the quest to
make this function return void, let struct sunxi_rsb_driver::remove
return void, too. All users already unconditionally return 0, this
commit makes this obvious and ensures future users don't behave
differently. To simplify even further, make axp20x_device_remove()
return void instead of returning 0 unconditionally, too.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Uwe Kleine-König 2020-11-26 11:41:42 +01:00 committed by Lee Jones
parent 5c8fe583cc
commit 3c15e00e7b
6 changed files with 11 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/bus/sunxi-rsb.c
View File

@ -170,7 +170,9 @@ static int sunxi_rsb_device_remove(struct device *dev)
{
const struct sunxi_rsb_driver *drv = to_sunxi_rsb_driver(dev->driver);
return drv->remove(to_sunxi_rsb_device(dev));
drv->remove(to_sunxi_rsb_device(dev));
return 0;
}
static struct bus_type sunxi_rsb_bus = {

4
drivers/mfd/axp20x-i2c.c
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@ -54,7 +54,9 @@ static int axp20x_i2c_remove(struct i2c_client *i2c)
{
struct axp20x_dev *axp20x = i2c_get_clientdata(i2c);
return axp20x_device_remove(axp20x);
axp20x_device_remove(axp20x);
return 0;
}
#ifdef CONFIG_OF

4
drivers/mfd/axp20x-rsb.c
View File

@ -49,11 +49,11 @@ static int axp20x_rsb_probe(struct sunxi_rsb_device *rdev)
return axp20x_device_probe(axp20x);
}
static int axp20x_rsb_remove(struct sunxi_rsb_device *rdev)
static void axp20x_rsb_remove(struct sunxi_rsb_device *rdev)
{
struct axp20x_dev *axp20x = sunxi_rsb_device_get_drvdata(rdev);
return axp20x_device_remove(axp20x);
axp20x_device_remove(axp20x);
}
static const struct of_device_id axp20x_rsb_of_match[] = {

4
drivers/mfd/axp20x.c
View File

@ -987,7 +987,7 @@ int axp20x_device_probe(struct axp20x_dev *axp20x)
}
EXPORT_SYMBOL(axp20x_device_probe);
int axp20x_device_remove(struct axp20x_dev *axp20x)
void axp20x_device_remove(struct axp20x_dev *axp20x)
{
if (axp20x == axp20x_pm_power_off) {
axp20x_pm_power_off = NULL;
@ -996,8 +996,6 @@ int axp20x_device_remove(struct axp20x_dev *axp20x)
mfd_remove_devices(axp20x->dev);
regmap_del_irq_chip(axp20x->irq, axp20x->regmap_irqc);
return 0;
}
EXPORT_SYMBOL(axp20x_device_remove);

2
include/linux/mfd/axp20x.h
View File

@ -696,6 +696,6 @@ int axp20x_device_probe(struct axp20x_dev *axp20x);
*
* This tells the axp20x core to remove the associated mfd devices
*/
int axp20x_device_remove(struct axp20x_dev *axp20x);
void axp20x_device_remove(struct axp20x_dev *axp20x);
#endif /* __LINUX_MFD_AXP20X_H */

2
include/linux/sunxi-rsb.h
View File

@ -59,7 +59,7 @@ static inline void sunxi_rsb_device_set_drvdata(struct sunxi_rsb_device *rdev,
struct sunxi_rsb_driver {
struct device_driver driver;
int (*probe)(struct sunxi_rsb_device *rdev);
int (*remove)(struct sunxi_rsb_device *rdev);
void (*remove)(struct sunxi_rsb_device *rdev);
};
static inline struct sunxi_rsb_driver *to_sunxi_rsb_driver(struct device_driver *d)