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led: triggers: Initialize LED_INIT_DEFAULT_TRIGGER if trigger is brought after class

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Trigger driver can be initialized after the LED class device driver.  In
such case led_trigger_set_default() won't be called and flag
LED_INIT_DEFAULT_TRIGGER should be set from led_trigger_register().

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Jacek Anaszewski <[email protected]>
This commit is contained in:
Krzysztof Kozlowski 2018-12-10 10:29:59 +01:00 • committed by Jacek Anaszewski
commit 8146aace60
1 changed files with 3 additions and 1 deletions
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4
drivers/leds/led-triggers.c
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@ -251,8 +251,10 @@ int led_trigger_register(struct led_trigger *trig)
list_for_each_entry(led_cdev, &leds_list, node) {
down_write(&led_cdev->trigger_lock);
if (!led_cdev->trigger && led_cdev->default_trigger &&
!strcmp(led_cdev->default_trigger, trig->name))
!strcmp(led_cdev->default_trigger, trig->name)) {
led_cdev->flags |= LED_INIT_DEFAULT_TRIGGER;
led_trigger_set(led_cdev, trig);
}
up_write(&led_cdev->trigger_lock);
}
up_read(&leds_list_lock);