From: Matthieu CASTET <matthieu.castet@parrot.com>
Date: Tue, 12 Dec 2017 10:10:44 +0000 (+0100)
Subject: led: core: Fix brightness setting when setting delay_off=0
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c2acc885913807ce4f6d21353d4d7525eaeb2c01;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

led: core: Fix brightness setting when setting delay_off=0


[ Upstream commit 2b83ff96f51d0b039c4561b9f95c824d7bddb85c ]

With the current code, the following sequence won't work :
echo timer > trigger

echo 0 >  delay_off
* at this point we call
** led_delay_off_store
** led_blink_set
---

diff --git a/drivers/leds/led-core.c b/drivers/leds/led-core.c
index ef1360445413..af630c11c284 100644
--- a/drivers/leds/led-core.c
+++ b/drivers/leds/led-core.c
@@ -187,7 +187,7 @@ void led_blink_set(struct led_classdev *led_cdev,
 		   unsigned long *delay_on,
 		   unsigned long *delay_off)
 {
-	del_timer_sync(&led_cdev->blink_timer);
+	led_stop_software_blink(led_cdev);
 
 	clear_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags);
 	clear_bit(LED_BLINK_ONESHOT_STOP, &led_cdev->work_flags);