linux-kernel - Re: [PATCH 1/1] ASoC: simple-card-utils: fix priv->dai

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Message-ID: <877c6xj7pe.wl-kuninori.morimoto.gx@renesas.com>
Date: Tue, 14 Jan 2025 23:29:01 +0000
From: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
To: Laurentiu Mihalcea <laurentiumihalcea111@...il.com>
Cc: Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] ASoC: simple-card-utils: fix priv->dai_props indexing


Hi Laurentiu

> From: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
> 
> As of commit cb18cd26039f ("ASoC: soc-core: do rtd->id trick at
> snd_soc_add_pcm_runtime()") the ID stored in the PCM runtime data can
> no longer be safely used to index the priv->dai_props array. This is
> because the ID may be modified during snd_soc_add_pcm_runtime(), thus
> resulting in an ID that's no longer a valid array index.
> 
> To fix this, use the position of the dai_link stored inside the PCM
> runtime data relative to the start of the dai_link array as index into
> the priv->dai_props array.
> 
> Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
> ---

Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>

Thank you for your help !!

Best regards
---
Kuninori Morimoto