linux-kernel - Re: [PATCH 1/4] spi: mt7621: Fix an error message in mt7621_spi

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Date:   Mon, 29 Aug 2022 13:07:03 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        broonie@...nel.org, gregkh@...uxfoundation.org, neil@...wn.name,
        blogic@...nwrt.org
Cc:     linux-spi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 1/4] spi: mt7621: Fix an error message in
 mt7621_spi_probe()



On 27/08/2022 13:42, Christophe JAILLET wrote:
> 'status' is known to be 0 at this point. The expected error code is
> PTR_ERR(clk).
> 
> Switch to dev_err_probe() in order to display the expected error code (in a
> human readable way).
> This also filters -EPROBE_DEFER cases, should it happen.
> 
> Fixes: 1ab7f2a43558 ("staging: mt7621-spi: add mt7621 support")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>

Reviewed-by: Matthias Brugger <matthias.bgg@...il.com>

> ---
>   drivers/spi/spi-mt7621.c | 8 +++-----
>   1 file changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/spi/spi-mt7621.c b/drivers/spi/spi-mt7621.c
> index b4b9b7309b5e..351b0ef52bbc 100644
> --- a/drivers/spi/spi-mt7621.c
> +++ b/drivers/spi/spi-mt7621.c
> @@ -340,11 +340,9 @@ static int mt7621_spi_probe(struct platform_device *pdev)
>   		return PTR_ERR(base);
>   
>   	clk = devm_clk_get(&pdev->dev, NULL);
> -	if (IS_ERR(clk)) {
> -		dev_err(&pdev->dev, "unable to get SYS clock, err=%d\n",
> -			status);
> -		return PTR_ERR(clk);
> -	}
> +	if (IS_ERR(clk))
> +		return dev_err_probe(&pdev->dev, PTR_ERR(clk),
> +				     "unable to get SYS clock\n");
>   
>   	status = clk_prepare_enable(clk);
>   	if (status)