linux-kernel - Re: [PATCH] ASoC: amd: yc: Fix the wrong return value

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Message-ID: <cabca893-74f3-441a-ad27-9589819cb1f4@web.de>
Date: Mon, 9 Dec 2024 14:46:38 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: Venkata Prasad Potturu <venkataprasad.potturu@....com>,
 alsa-devel@...a-project.org, linux-sound@...r.kernel.org,
 Mark Brown <broonie@...nel.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
 Basavaraj Hiregoudar <Basavaraj.Hiregoudar@....com>,
 Jaroslav Kysela <perex@...ex.cz>, Jiawei Wang <me@...ng.link>,
 Liam Girdwood <lgirdwood@...il.com>,
 Mario Limonciello <mario.limonciello@....com>,
 Sunil-kumar Dommati <Sunil-kumar.Dommati@....com>,
 Syed Saba Kareem <Syed.SabaKareem@....com>, Takashi Iwai <tiwai@...e.com>,
 Vijendar Mukunda <Vijendar.Mukunda@....com>, end.to.start@...l.ru
Subject: Re: [PATCH] ASoC: amd: yc: Fix the wrong return value

…
> Add a condition check to jump to check the DMI entries
> incase of ACP driver fail to read ACPI _WOV method.

  in case?             failure?


…
> +++ b/sound/soc/amd/yc/acp6x-mach.c
> @@ -578,14 +578,19 @@ static int acp6x_probe(struct platform_device *pdev)
>
>  	handle = ACPI_HANDLE(pdev->dev.parent);
>  	ret = acpi_evaluate_integer(handle, "_WOV", NULL, &dmic_status);
> -	if (!ACPI_FAILURE(ret))
> +	if (!ACPI_FAILURE(ret)) {
>  		wov_en = dmic_status;
> +		if (!wov_en)
> +			return -ENODEV;
> +	} else {
> +		/* Incase of ACPI method read failure then jump to check_dmi_entry */
> +		goto check_dmi_entry;
> +	}
>
>  	if (is_dmic_enable && wov_en)
>  		platform_set_drvdata(pdev, &acp6x_card);
…

Is there a need to adjust another condition check accordingly?

Regards,
Markus