pwm: Make pwmchip_remove() return void

Uwe Kleine-König · thierryreding · commit 8083f58d08fd · 2021-09-02T21:38:56.000+02:00
Since some time pwmchip_remove() always returns 0 so the return value
isn't usefull. Now that all callers are converted to ignore its value
the function can be changed to return void.

Signed-off-by: Uwe Kleine-König &lt;u.kleine-koenig@pengutronix.de&gt;
Signed-off-by: Thierry Reding &lt;thierry.reding@gmail.com&gt;
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
@@ -304,7 +304,7 @@ EXPORT_SYMBOL_GPL(pwmchip_add);
  *
  * Returns: 0 on success or a negative error code on failure.
  */
-int pwmchip_remove(struct pwm_chip *chip)
+void pwmchip_remove(struct pwm_chip *chip)
 {
 	pwmchip_sysfs_unexport(chip);
 
@@ -318,8 +318,6 @@ int pwmchip_remove(struct pwm_chip *chip)
 	free_pwms(chip);
 
 	mutex_unlock(&pwm_lock);
-
-	return 0;
 }
 EXPORT_SYMBOL_GPL(pwmchip_remove);
 
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
@@ -404,7 +404,7 @@ int pwm_set_chip_data(struct pwm_device *pwm, void *data);
 void *pwm_get_chip_data(struct pwm_device *pwm);
 
 int pwmchip_add(struct pwm_chip *chip);
-int pwmchip_remove(struct pwm_chip *chip);
+void pwmchip_remove(struct pwm_chip *chip);
 
 int devm_pwmchip_add(struct device *dev, struct pwm_chip *chip);
 

Original file line number	Diff line number	Diff line change
`@@ -304,7 +304,7 @@ EXPORT_SYMBOL_GPL(pwmchip_add);`
`304`	`304`	`*`
`305`	`305`	`* Returns: 0 on success or a negative error code on failure.`
`306`	`306`	`*/`
`307`		`-int pwmchip_remove(struct pwm_chip *chip)`
	`307`	`+void pwmchip_remove(struct pwm_chip *chip)`
`308`	`308`	`{`
`309`	`309`	`pwmchip_sysfs_unexport(chip);`
`310`	`310`
`@@ -318,8 +318,6 @@ int pwmchip_remove(struct pwm_chip *chip)`
`318`	`318`	`free_pwms(chip);`
`319`	`319`
`320`	`320`	`mutex_unlock(&pwm_lock);`
`321`		`-`
`322`		`- return 0;`
`323`	`321`	`}`
`324`	`322`	`EXPORT_SYMBOL_GPL(pwmchip_remove);`
`325`	`323`