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    Subject[PATCH v4 3/5] leds: pwm: check result of led_pwm_set() in led_pwm_add()
    Date
    led_pwm_set() now returns an error when setting the PWM fails.

    Cc: Uwe Kleine-König <uwe@kleine-koenig.org>
    Signed-off-by: Denis Osterland-Heim <Denis.Osterland@diehl.com>
    ---
    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 6caf8bea8cd5..07eab2d8b7c7 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)
    --
    2.25.1


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