Patch "led: core: Fix brightness setting when setting delay_off=0" has been added to the 4.9-stable tree

Patch "led: core: Fix brightness setting when setting delay_off=0" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

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

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     led-core-fix-brightness-setting-when-setting-delay_off-0.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Wed Feb 28 16:13:29 CET 2018
From: Matthieu CASTET <matthieu.castet@parrot.com>
Date: Tue, 12 Dec 2017 11:10:44 +0100
Subject: led: core: Fix brightness setting when setting delay_off=0

From: Matthieu CASTET <matthieu.castet@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
@@ -186,7 +186,7 @@ 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);
 
 	led_cdev->flags &= ~LED_BLINK_ONESHOT;
 	led_cdev->flags &= ~LED_BLINK_ONESHOT_STOP;


Patches currently in stable-queue which might be from matthieu.castet@parrot.com are

queue-4.9/led-core-fix-brightness-setting-when-setting-delay_off-0.patch