2020-04-21 13:13:07

by Denis OSTERLAND-HEIM

[permalink] [raw]
Subject: [PATCH v5 1/3] leds: pwm: check result of led_pwm_set() in led_pwm_add()

led_pwm_set() now returns an error when setting the PWM fails.

Signed-off-by: Denis Osterland-Heim <[email protected]>
---
drivers/leds/leds-pwm.c | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c
index 6c8a724aac51..ef7b91bd2064 100644
--- a/drivers/leds/leds-pwm.c
+++ b/drivers/leds/leds-pwm.c
@@ -91,15 +91,21 @@ static int led_pwm_add(struct device *dev, struct led_pwm_priv *priv,
pwm_init_state(led_data->pwm, &led_data->pwmstate);

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);
- } else {
+ if (ret) {
dev_err(dev, "failed to register PWM led for %s: %d\n",
led->name, ret);
+ return ret;
}

- return ret;
+ ret = led_pwm_set(&led_data->cdev, led_data->cdev.brightness);
+ if (ret) {
+ dev_err(dev, "failed to set led PWM value for %s: %d",
+ led->name, ret);
+ return ret;
+ }
+
+ priv->num_leds++;
+ return 0;
}

static int led_pwm_create_fwnode(struct device *dev, struct led_pwm_priv *priv)
--
2.26.2



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2020-04-27 09:38:38

by Pavel Machek

[permalink] [raw]
Subject: Re: [PATCH v5 1/3] leds: pwm: check result of led_pwm_set() in led_pwm_add()

On Tue 2020-04-21 13:09:14, Denis Osterland-Heim wrote:
> led_pwm_set() now returns an error when setting the PWM fails.
>
> Signed-off-by: Denis Osterland-Heim <[email protected]>

Thanks, applied. (Just this patch for now).
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


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