diff options
Diffstat (limited to 'drivers/leds/trigger/ledtrig-panic.c')
| -rw-r--r-- | drivers/leds/trigger/ledtrig-panic.c | 28 |
1 files changed, 11 insertions, 17 deletions
diff --git a/drivers/leds/trigger/ledtrig-panic.c b/drivers/leds/trigger/ledtrig-panic.c index 64abf2e91608..1d49c1078091 100644 --- a/drivers/leds/trigger/ledtrig-panic.c +++ b/drivers/leds/trigger/ledtrig-panic.c @@ -21,24 +21,15 @@ static struct led_trigger *trigger; */ static void led_trigger_set_panic(struct led_classdev *led_cdev) { - struct led_trigger *trig; + if (led_cdev->trigger) + list_del(&led_cdev->trig_list); + list_add_tail(&led_cdev->trig_list, &trigger->led_cdevs); - list_for_each_entry(trig, &trigger_list, next_trig) { - if (strcmp("panic", trig->name)) - continue; - if (led_cdev->trigger) - list_del(&led_cdev->trig_list); - list_add_tail(&led_cdev->trig_list, &trig->led_cdevs); + /* Avoid the delayed blink path */ + led_cdev->blink_delay_on = 0; + led_cdev->blink_delay_off = 0; - /* Avoid the delayed blink path */ - led_cdev->blink_delay_on = 0; - led_cdev->blink_delay_off = 0; - - led_cdev->trigger = trig; - if (trig->activate) - trig->activate(led_cdev); - break; - } + led_cdev->trigger = trigger; } static int led_trigger_panic_notifier(struct notifier_block *nb, @@ -64,10 +55,13 @@ static long led_panic_blink(int state) static int __init ledtrig_panic_init(void) { + led_trigger_register_simple("panic", &trigger); + if (!trigger) + return -ENOMEM; + atomic_notifier_chain_register(&panic_notifier_list, &led_trigger_panic_nb); - led_trigger_register_simple("panic", &trigger); panic_blink = led_panic_blink; return 0; } |