Re: [PATCH V2] drm/tegra: sor: Don't warn on probe deferral

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04.11.2020 12:23, Jon Hunter пишет:
> Deferred probe is an expected return value for tegra_output_probe().
> Given that the driver deals with it properly, there's no need to output
> a warning that may potentially confuse users.
> 
> Signed-off-by: Jon Hunter <jonathanh@xxxxxxxxxx>
> ---
> 
> Changes since V1:
> - This time, I actually validated it!
> 
>  drivers/gpu/drm/tegra/sor.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
> index e88a17c2937f..898a80ca37fa 100644
> --- a/drivers/gpu/drm/tegra/sor.c
> +++ b/drivers/gpu/drm/tegra/sor.c
> @@ -3764,10 +3764,9 @@ static int tegra_sor_probe(struct platform_device *pdev)
>  		return err;
>  
>  	err = tegra_output_probe(&sor->output);
> -	if (err < 0) {
> -		dev_err(&pdev->dev, "failed to probe output: %d\n", err);
> -		return err;
> -	}
> +	if (err < 0)
> +		return dev_err_probe(&pdev->dev, err,
> +				     "failed to probe output: %d\n", err);

Hello Jon,

There is no need to duplicate the error code in the message [1]. Perhaps
worth making a v3? :)

[1]
https://elixir.bootlin.com/linux/v5.10-rc2/source/drivers/base/core.c#L4240
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