linux-kernel - [PATCH 3.18 47/93] Revert "led: core: Fix brightness setting when setting delay

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Date:   Fri,  6 Apr 2018 15:23:16 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Matthieu CASTET <matthieu.castet@...rot.com>,
        Ben Hutchings <ben.hutchings@...ethink.co.uk>,
        Wang Han <wanghan1995315@...il.com>
Subject: [PATCH 3.18 47/93] Revert "led: core: Fix brightness setting when setting delay_off=0"

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

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

From: Ben Hutchings <ben.hutchings@...ethink.co.uk>

This reverts commit 20f6d9c2af33da892a0e03ffd6249c7ab81edfb7, which
was commit 2b83ff96f51d0b039c4561b9f95c824d7bddb85c upstream.
The bug that it should fix was only introduced in Linux 4.7, and
in 4.4 it causes a regression.

Reported-by: Jacek Anaszewski <jacek.anaszewski@...il.com>
Cc: Matthieu CASTET <matthieu.castet@...rot.com>
Signed-off-by: Ben Hutchings <ben.hutchings@...ethink.co.uk>
Cc: Wang Han <wanghan1995315@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 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
@@ -76,7 +76,7 @@ void led_blink_set(struct led_classdev *
 		   unsigned long *delay_on,
 		   unsigned long *delay_off)
 {
-	led_stop_software_blink(led_cdev);
+	del_timer_sync(&led_cdev->blink_timer);
 
 	led_cdev->flags &= ~LED_BLINK_ONESHOT;
 	led_cdev->flags &= ~LED_BLINK_ONESHOT_STOP;