diff options
| author | Krzysztof Kozlowski <krzk@kernel.org> | 2018-12-07 15:32:51 +0300 |
|---|---|---|
| committer | Jacek Anaszewski <jacek.anaszewski@gmail.com> | 2018-12-08 20:59:35 +0300 |
| commit | e5a0436dd08a18834c134ffd08295e36c6f85219 (patch) | |
| tree | d64cb663792ad71cbb4f43747f093b325b63e833 /drivers/leds/leds-pwm.c | |
| parent | b086592e5dcd9cee360f44be801fbcadb24d5c46 (diff) | |
| download | linux-e5a0436dd08a18834c134ffd08295e36c6f85219.tar.xz | |
leds: pwm: Simplify with resource-managed devm_led_classdev_register()
Simplify the exit path with resource-managed version of registering LED
class device. The code should be functionally the same, except that on
device removal the led_pwm_priv->num_leds is not decremented to zero
(which should not have any effect as device is going away).
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Diffstat (limited to 'drivers/leds/leds-pwm.c')
| -rw-r--r-- | drivers/leds/leds-pwm.c | 22 |
1 files changed, 2 insertions, 20 deletions
diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c index 5d3faae51d59..fcb3e87a9887 100644 --- a/drivers/leds/leds-pwm.c +++ b/drivers/leds/leds-pwm.c @@ -74,12 +74,6 @@ static inline size_t sizeof_pwm_leds_priv(int num_leds) (sizeof(struct led_pwm_data) * num_leds); } -static void led_pwm_cleanup(struct led_pwm_priv *priv) -{ - while (priv->num_leds--) - led_classdev_unregister(&priv->leds[priv->num_leds].cdev); -} - static int led_pwm_add(struct device *dev, struct led_pwm_priv *priv, struct led_pwm *led, struct device_node *child) { @@ -120,7 +114,7 @@ static int led_pwm_add(struct device *dev, struct led_pwm_priv *priv, if (!led_data->period && (led->pwm_period_ns > 0)) led_data->period = led->pwm_period_ns; - ret = led_classdev_register(dev, &led_data->cdev); + ret = devm_led_classdev_register(dev, &led_data->cdev); if (ret == 0) { priv->num_leds++; led_pwm_set(&led_data->cdev, led_data->cdev.brightness); @@ -191,25 +185,14 @@ static int led_pwm_probe(struct platform_device *pdev) ret = led_pwm_create_of(&pdev->dev, priv); } - if (ret) { - led_pwm_cleanup(priv); + if (ret) return ret; - } platform_set_drvdata(pdev, priv); return 0; } -static int led_pwm_remove(struct platform_device *pdev) -{ - struct led_pwm_priv *priv = platform_get_drvdata(pdev); - - led_pwm_cleanup(priv); - - return 0; -} - static const struct of_device_id of_pwm_leds_match[] = { { .compatible = "pwm-leds", }, {}, @@ -218,7 +201,6 @@ MODULE_DEVICE_TABLE(of, of_pwm_leds_match); static struct platform_driver led_pwm_driver = { .probe = led_pwm_probe, - .remove = led_pwm_remove, .driver = { .name = "leds_pwm", .of_match_table = of_pwm_leds_match, |