linux-kernel - Re: [PATCH] ASoC: stm32: i2s: return the get

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Date:   Thu, 25 Apr 2019 09:05:22 +0000
From:   Olivier MOYSAN <olivier.moysan@...com>
To:     Fabien DESSENNE <fabien.dessenne@...com>,
        Arnaud POULIQUEN <arnaud.pouliquen@...com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        "Alexandre TORGUE" <alexandre.torgue@...com>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
        "linux-stm32@...md-mailman.stormreply.com" 
        <linux-stm32@...md-mailman.stormreply.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ASoC: stm32: i2s: return the get_irq error



On 4/24/19 5:28 PM, Fabien Dessenne wrote:
> During probe, return the "get_irq" error value instead of -ENOENT. This
> allows the driver to be deferred probed if needed.
> 
> Signed-off-by: Fabien Dessenne <fabien.dessenne@...com>

Acked-by: Olivier Moysan <olivier.moysan@...com>

> ---
>   sound/soc/stm/stm32_i2s.c | 5 +++--
>   1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/sound/soc/stm/stm32_i2s.c b/sound/soc/stm/stm32_i2s.c
> index 9526342..97d5e99 100644
> --- a/sound/soc/stm/stm32_i2s.c
> +++ b/sound/soc/stm/stm32_i2s.c
> @@ -838,8 +838,9 @@ static int stm32_i2s_parse_dt(struct platform_device *pdev,
>   	/* Get irqs */
>   	irq = platform_get_irq(pdev, 0);
>   	if (irq < 0) {
> -		dev_err(&pdev->dev, "no irq for node %s\n", pdev->name);
> -		return -ENOENT;
> +		if (irq != -EPROBE_DEFER)
> +			dev_err(&pdev->dev, "no irq for node %s\n", pdev->name);
> +		return irq;
>   	}
>   
>   	ret = devm_request_irq(&pdev->dev, irq, stm32_i2s_isr, IRQF_ONESHOT,
>