linux-kernel - Re: (subset) [PATCH] backlight: led_bl: Hold led_access lock when calling led_sysfs

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Message-Id: <173928317062.2187723.11690130605159710532.b4-ty@kernel.org>
Date: Tue, 11 Feb 2025 14:12:50 +0000
From: Lee Jones <lee@...nel.org>
To: Lee Jones <lee@...nel.org>, Daniel Thompson <danielt@...nel.org>, 
 Jingoo Han <jingoohan1@...il.com>, Helge Deller <deller@....de>, 
 Tony Lindgren <tony@...mide.com>, Pavel Machek <pavel@....cz>, 
 Tomi Valkeinen <tomi.valkeinen@...com>, 
 Jean-Jacques Hiblot <jjhiblot@...com>, 
 Herve Codina <herve.codina@...tlin.com>
Cc: Daniel Thompson <daniel.thompson@...aro.org>, 
 dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Luca Ceresoli <luca.ceresoli@...tlin.com>, 
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>, stable@...r.kernel.org
Subject: Re: (subset) [PATCH] backlight: led_bl: Hold led_access lock when
 calling led_sysfs_disable()

On Wed, 22 Jan 2025 10:19:14 +0100, Herve Codina wrote:
> Lockdep detects the following issue on led-backlight removal:
>   [  142.315935] ------------[ cut here ]------------
>   [  142.315954] WARNING: CPU: 2 PID: 292 at drivers/leds/led-core.c:455 led_sysfs_enable+0x54/0x80
>   ...
>   [  142.500725] Call trace:
>   [  142.503176]  led_sysfs_enable+0x54/0x80 (P)
>   [  142.507370]  led_bl_remove+0x80/0xa8 [led_bl]
>   [  142.511742]  platform_remove+0x30/0x58
>   [  142.515501]  device_remove+0x54/0x90
>   ...
> 
> [...]

Applied, thanks!

[1/1] backlight: led_bl: Hold led_access lock when calling led_sysfs_disable()
      commit: 276822a00db3c1061382b41e72cafc09d6a0ec30

--
Lee Jones [李琼斯]