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Message-ID: <e0319f92-b0c7-4f26-814d-f86ac410b2e1@roeck-us.net>
Date: Thu, 9 Nov 2023 08:25:51 -0800
From: Guenter Roeck <linux@...ck-us.net>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Javier Carrasco <javier.carrasco.cruz@...il.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Jean Delvare <jdelvare@...e.com>,
Jonathan Corbet <corbet@....net>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>
Cc: Rob Herring <robh@...nel.org>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-hwmon@...r.kernel.org,
linux-doc@...r.kernel.org
Subject: Re: [PATCH v2 3/4] hwmon: Add support for Amphenol ChipCap 2
On 11/9/23 08:18, Krzysztof Kozlowski wrote:
> On 09/11/2023 15:55, Guenter Roeck wrote:
>>>> + if (IS_ERR(data->hwmon)) {
>>>> + ret = PTR_ERR(data->hwmon);
>>>> + goto cleanup;
>>>> + }
>>>> +
>>>> + return 0;
>>>> +
>>>> +cleanup:
>>>> + if (cc2_disable(data))
>>>> + dev_dbg(dev, "Failed to disable device");
>>>> +
>>>> + return dev_err_probe(dev, ret,
>>>> + "Unable to register hwmon device\n");
>>>
>>> Drop or move to each error path.
>>>
>> This actually follows Documentation/process/coding-style.rst, chapter 7
>> (Centralized exiting of functions).
>
> The point is that centralized message of error is useless. Probe failure
> is already handled by core, thus another message doing the same is
> redundant. What is needed to explain the true reason of failure, thus
> the error message should be next to each type of failure. Missing
> regulator? Say it. Missing clock? Say something else.
>
Agreed, you have a point.
Thanks,
Guenter
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