linux-kernel - Re: [thermal-next PATCH v2 1/2] thermal: qcom: tsens: init debugfs only with successful probe

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Date:   Mon, 10 May 2021 08:41:00 -0400
From:   Thara Gopinath <thara.gopinath@...aro.org>
To:     Ansuel Smith <ansuelsmth@...il.com>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Amit Kucheria <amitk@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [thermal-next PATCH v2 1/2] thermal: qcom: tsens: init debugfs
 only with successful probe



On 4/28/21 9:05 PM, Ansuel Smith wrote:
> calibrate and tsens_register can fail or PROBE_DEFER. This will cause a
> double or a wrong init of the debugfs information. Init debugfs only
> with successful probe fixing warning about directory already present.
> 
> Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>

Reviewed-by: Thara Gopinath <thara.gopinath@...aro.org>

-- 
Warm Regards
Thara
> ---
>   drivers/thermal/qcom/tsens.c | 9 ++++++---
>   1 file changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
> index d8ce3a687b80..b37d5fd71f3a 100644
> --- a/drivers/thermal/qcom/tsens.c
> +++ b/drivers/thermal/qcom/tsens.c
> @@ -845,8 +845,6 @@ int __init init_common(struct tsens_priv *priv)
>   	if (tsens_version(priv) >= VER_0_1)
>   		tsens_enable_irq(priv);
>   
> -	tsens_debug_init(op);
> -
>   err_put_device:
>   	put_device(&op->dev);
>   	return ret;
> @@ -1057,7 +1055,12 @@ static int tsens_probe(struct platform_device *pdev)
>   		}
>   	}
>   
> -	return tsens_register(priv);
> +	ret = tsens_register(priv);
> +
> +	if (!ret)
> +		tsens_debug_init(pdev);
> +
> +	return ret;
>   }
>   
>   static int tsens_remove(struct platform_device *pdev)
>