[PATCH v2 3/5] led: triggers: Initialize LED_INIT_DEFAULT_TRIGGER if trigger is brought after class
From: Krzysztof Kozlowski
Date: Mon Dec 10 2018 - 04:30:25 EST
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 <krzk@xxxxxxxxxx>
---
drivers/leds/led-triggers.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
index 9421222ca7a0..c67b044ae0af 100644
--- a/drivers/leds/led-triggers.c
+++ b/drivers/leds/led-triggers.c
@@ -252,8 +252,10 @@ 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);
--
2.7.4