[PATCH leds v2 36/50] leds: ns2: use devres LED registering function

Marek Behún
2020-09-17T22:35:26Z

By using devres version of LED registering function we can remove the
.remove method from this driver. The probe method also gets simpler.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Simon Guinot <simon.guinot@sequanux.org>
Cc: Simon Guinot <sguinot@lacie.com>
Cc: Vincent Donnefort <vdonnefort@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
---
drivers/leds/leds-ns2.c | 30 ++----------------------------
1 file changed, 2 insertions(+), 28 deletions(-)

diff --git a/drivers/leds/leds-ns2.c b/drivers/leds/leds-ns2.c
index 22d38c83b6dca..1a7ef66464b5d 100644
--- a/drivers/leds/leds-ns2.c
+++ b/drivers/leds/leds-ns2.c
@@ -227,16 +227,7 @@ create_ns2_led(struct platform_device *pdev, struct ns2_led_data *led_dat,
led_dat->cdev.brightness =
(mode == NS_V2_LED_OFF) ? LED_OFF : LED_FULL;

- ret = led_classdev_register(&pdev->dev, &led_dat->cdev);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static void delete_ns2_led(struct ns2_led_data *led_dat)
-{
- led_classdev_unregister(&led_dat->cdev);
+ return devm_led_classdev_register(&pdev->dev, &led_dat->cdev);
}

#ifdef CONFIG_OF_GPIO
@@ -380,11 +371,8 @@ static int ns2_led_probe(struct platform_device *pdev)
for (i = 0; i < priv->num_leds; i++) {
ret = create_ns2_led(pdev, &priv->leds_data[i],
&pdata->leds[i]);
- if (ret < 0) {
- for (i = i - 1; i >= 0; i--)
- delete_ns2_led(&priv->leds_data[i]);
+ if (ret < 0)
return ret;
- }
}

platform_set_drvdata(pdev, priv);
@@ -392,22 +380,8 @@ static int ns2_led_probe(struct platform_device *pdev)
return 0;
}

-static int ns2_led_remove(struct platform_device *pdev)
-{
- int i;
- struct ns2_led_priv *priv;
-
- priv = platform_get_drvdata(pdev);
-
- for (i = 0; i < priv->num_leds; i++)
- delete_ns2_led(&priv->leds_data[i]);
-
- return 0;
-}
-
static struct platform_driver ns2_led_driver = {
.probe = ns2_led_probe,
- .remove = ns2_led_remove,
.driver = {
.name = "leds-ns2",
.of_match_table = of_match_ptr(of_ns2_leds_match),
--
2.26.2