Re: [PATCH] ata: omit superfluous error message

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Hi,

On 4/20/20 3:53 PM, Tang Bin wrote:
> In the probe function, when get irq failed, the function
> platform_get_irq() logs an error message, so remove
> redundant message here.

platform_get_irq() doesn't log an error message for -EPROBE_DEFER
case so the conversion shouldn't be done automatically for device
drivers which don't support deferred probing (i.e. pata_rb532_cf &
sata_highbank).

Unless there is a proof that -PROBE_DEFER can't happen for these
two drivers this patch shouldn't be applied.

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

> Signed-off-by: Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx>
> ---
>  drivers/ata/pata_rb532_cf.c | 4 +---
>  drivers/ata/sata_highbank.c | 4 +---
>  2 files changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c
> index 479c4b29b..dcde84f57 100644
> --- a/drivers/ata/pata_rb532_cf.c
> +++ b/drivers/ata/pata_rb532_cf.c
> @@ -115,10 +115,8 @@ static int rb532_pata_driver_probe(struct platform_device *pdev)
>  	}
>  
>  	irq = platform_get_irq(pdev, 0);
> -	if (irq <= 0) {
> -		dev_err(&pdev->dev, "no IRQ resource found\n");
> +	if (irq <= 0)
>  		return -ENOENT;
> -	}
>  
>  	gpiod = devm_gpiod_get(&pdev->dev, NULL, GPIOD_IN);
>  	if (IS_ERR(gpiod)) {
> diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c
> index ad3893c62..efd1925a9 100644
> --- a/drivers/ata/sata_highbank.c
> +++ b/drivers/ata/sata_highbank.c
> @@ -469,10 +469,8 @@ static int ahci_highbank_probe(struct platform_device *pdev)
>  	}
>  
>  	irq = platform_get_irq(pdev, 0);
> -	if (irq <= 0) {
> -		dev_err(dev, "no irq\n");
> +	if (irq <= 0)
>  		return -EINVAL;
> -	}
>  
>  	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
>  	if (!hpriv) {
> 




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