[PATCH 4.14 062/115] led: core: Fix brightness setting when setting delay_off=0

[Greg Kroah-Hartman]

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Matthieu CASTET <matthieu.cas...@parrot.com>


[ 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
---
 drivers/leds/led-core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/leds/led-core.c
+++ b/drivers/leds/led-core.c
@@ -187,7 +187,7 @@ void led_blink_set(struct led_classdev *
                   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);