From: Jaroslav Kysela <perex@perex.cz>
To: Takashi Iwai <tiwai@suse.de>, alsa-devel@alsa-project.org
Subject: Re: [PATCH] ALSA: pcm: Add stream lock during PCM reset ioctl operations
Date: Tue, 22 Mar 2022 18:25:21 +0100 [thread overview]
Message-ID: <d8df02af-9260-00e9-a5a5-3aa2db372457@perex.cz> (raw)
In-Reply-To: <20220322171325.4355-1-tiwai@suse.de>
On 22. 03. 22 18:13, Takashi Iwai wrote:
> snd_pcm_reset() is a non-atomic operation, and it's allowed to run
> during the PCM stream running. It implies that the manipulation of
> hw_ptr and other parameters might be racy.
>
> This patch adds the PCM stream lock at appropriate places in
> snd_pcm_*_reset() actions for covering that.
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Thanks,
Jaroslav
--
Jaroslav Kysela <perex@perex.cz>
Linux Sound Maintainer; ALSA Project; Red Hat, Inc.
prev parent reply other threads:[~2022-03-22 17:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-22 17:13 [PATCH] ALSA: pcm: Add stream lock during PCM reset ioctl operations Takashi Iwai
2022-03-22 17:25 ` Jaroslav Kysela [this message]
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