From: Takashi Iwai <tiwai@suse.de>
To: Runyu Xiao <runyu.xiao@seu.edu.cn>
Cc: Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org,
stable@vger.kernel.org, Jianhao Xu <jianhao.xu@seu.edu.cn>
Subject: Re: [PATCH] ALSA: pcxhr: initialize mutexes before requesting threaded IRQ
Date: Wed, 19 Aug 2026 14:59:57 +0200 [thread overview]
Message-ID: <87ecfunu42.wl-tiwai@suse.de> (raw)
In-Reply-To: <20260818144717.2269918-1-runyu.xiao@seu.edu.cn>
On Tue, 18 Aug 2026 16:47:17 +0200,
Runyu Xiao wrote:
>
> pcxhr_probe() requests pcxhr_threaded_irq() before initializing
> mgr->lock, even though the threaded handler takes that mutex.
>
> Initialize the manager locks before request_threaded_irq() so an
> early interrupt cannot run against uninitialized mutex state during
> probe.
>
> Fixes: 9bef72bdb26e ("ALSA: pcxhr: Use nonatomic PCM ops")
> Cc: stable@vger.kernel.org
> Signed-off-by: Runyu Xiao <runyu.xiao@seu.edu.cn>
Applied now. Thanks.
Takashi
prev parent reply other threads:[~2026-08-19 13:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-18 14:47 [PATCH] ALSA: pcxhr: initialize mutexes before requesting threaded IRQ Runyu Xiao
2026-08-19 12:59 ` Takashi Iwai [this message]
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