From: sashiko-bot@kernel.org
To: "Rong Zhang" <i@rong.moe>
Cc: linux-leds@vger.kernel.org, lee@kernel.org
Subject: Re: [PATCH v6 01/12] leds: class: Always protect brightness_show() with led_access
Date: Wed, 02 Sep 2026 18:15:55 +0000 [thread overview]
Message-ID: <20260902181555.C63E41F000E9@smtp.kernel.org> (raw)
In-Reply-To: <20260902-leds-trigger-hw-changed-v6-1-55693cd78877@rong.moe>
> The led_classdev_register_ext() protects transient states when
> registering with the led_access mutex and relies on all sensitive sysfs
> attribute callbacks holding the mutex to prevent exposing transient
> states.
>
> The Fixes: commit broke this as it accessed trigger_lock without holding
> led_access. Fix it by protecting brightness_show() with led_access in
> all code paths.
>
> Fixes: b819dc7d8fb2 ("leds: core: Report ENODATA for brightness of hardware controlled LED")
> Signed-off-by: Rong Zhang <i@rong.moe>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260902-leds-trigger-hw-changed-v6-0-55693cd78877@rong.moe?part=1
next prev parent reply other threads:[~2026-09-02 18:15 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-01 18:09 [PATCH v6 00/12] leds: Add support for hardware-initiated hardware control trigger transition Rong Zhang
2026-09-01 18:09 ` [PATCH v6 01/12] leds: class: Always protect brightness_show() with led_access Rong Zhang
2026-09-02 18:15 ` sashiko-bot [this message]
2026-09-01 18:09 ` [PATCH v6 02/12] leds: Move led_trigger_is_hw_controlled() to the right place Rong Zhang
2026-09-02 18:15 ` sashiko-bot
2026-09-01 18:09 ` [PATCH v6 03/12] leds: class: Remove hardware control trigger when writing brightness Rong Zhang
2026-09-02 18:15 ` sashiko-bot
2026-09-01 18:09 ` [PATCH v6 04/12] leds: trigger: Add offloaded() callback and provide trigger_may_offload attribute Rong Zhang
2026-09-02 18:15 ` sashiko-bot
2026-09-10 15:05 ` Lee Jones
2026-09-10 18:01 ` Rong Zhang
2026-09-01 18:09 ` [PATCH v6 05/12] leds: cros_ec: Implement offloaded() trigger callback Rong Zhang
2026-09-02 18:15 ` sashiko-bot
2026-09-02 18:45 ` Rong Zhang
2026-09-01 18:09 ` [PATCH v6 06/12] leds: turris-omnia: Implement offloaded() trigger callback and declare hw_control_trigger Rong Zhang
2026-09-02 18:15 ` sashiko-bot
2026-09-02 18:46 ` Rong Zhang
2026-09-01 18:09 ` [PATCH v6 07/12] leds: trigger: netdev: Implement offloaded() callback Rong Zhang
2026-09-02 18:15 ` sashiko-bot
2026-09-02 18:47 ` Rong Zhang
2026-09-01 18:09 ` [PATCH v6 08/12] leds: trigger: Enforce strict checks in led_trigger_is_hw_controlled() Rong Zhang
2026-09-02 18:15 ` sashiko-bot
2026-09-01 18:09 ` [PATCH v6 09/12] leds: trigger: Add led_trigger_notify_hw_control_changed() interface Rong Zhang
2026-09-02 18:15 ` sashiko-bot
2026-09-02 18:56 ` Rong Zhang
2026-09-10 15:45 ` Lee Jones
2026-09-10 18:17 ` Rong Zhang
2026-09-01 18:09 ` [PATCH v6 10/12] platform/x86: ideapad-laptop: Serialize keyboard backlight tracking Rong Zhang
2026-09-02 18:15 ` sashiko-bot
2026-09-01 18:09 ` [PATCH v6 11/12] platform/x86: ideapad-laptop: Decouple hardware & classdev brightness for keyboard backlight Rong Zhang
2026-09-02 18:15 ` sashiko-bot
2026-09-02 19:15 ` Rong Zhang
2026-09-01 18:09 ` [PATCH v6 12/12] platform/x86: ideapad-laptop: Fully support auto " Rong Zhang
2026-09-02 18:15 ` sashiko-bot
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