linux-kernel - Re: [PATCH v2] ALSA: hda: Fix race between creating and refreshing sysfs entries

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Message-ID: <s5hzhnqjzkr.wl-tiwai@suse.de>
Date:   Mon, 13 May 2019 14:42:12 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     Amadeusz Sławiński 
        <amadeuszx.slawinski@...ux.intel.com>
Cc:     <alsa-devel@...a-project.org>, "Jaroslav Kysela" <perex@...ex.cz>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] ALSA: hda: Fix race between creating and refreshing sysfs entries

On Mon, 13 May 2019 11:18:01 +0200,
Amadeusz Sławiński wrote:
> 
> hda_widget_sysfs_reinit() can free underlying codec->widgets structure
> on which widget_tree_create() operates. Add locking to prevent such
> issues from happening.
> 
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110382
> Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@...ux.intel.com>
> ---
> 
> Changes since v1:
>  - Moved mutexes around the callers
>  - Added comments noting that functions should be called with mutex held

Applied, thanks.


Takashi