linux-kernel - Re: [PATCH v6 14/35] i2c: tegra: Clean up probe function

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Message-ID: <dd51a8eb-5b8d-0b63-3130-428980cfe7ff@gmail.com>
Date:   Tue, 8 Sep 2020 16:16:26 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Laxman Dewangan <ldewangan@...dia.com>,
        Wolfram Sang <wsa@...-dreams.de>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        linux-i2c <linux-i2c@...r.kernel.org>,
        linux-tegra@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 14/35] i2c: tegra: Clean up probe function

08.09.2020 11:40, Andy Shevchenko пишет:
> On Tue, Sep 8, 2020 at 5:11 AM Dmitry Osipenko <digetx@...il.com> wrote:
>>
>> The driver's probe function code is a bit difficult to read. This patch
>> reorders code of the probe function, forming groups of code that are easy
>> to work with.
>>
>> The probe tear-down order now matches the driver-removal order.
> 
>> All dev/&pdev->dev are replaced with i2c_dev->dev in order to have uniform
>> code style across the driver.
> 
> You see, below is my point why leaving a temporary variable can reduce a churn.
> 
>> The "ret" variable renamed to "err" since it only carries error code and
>> the new name clearly shows that.
> 
> Overall it sounds like you need to split this into a few patches.
> 
> ...
> 
>> -       struct device *dev = &pdev->dev;
> 
>> -       i2c_dev->rst = devm_reset_control_get_exclusive(&pdev->dev, "i2c");
> 
>> +       i2c_dev->rst = devm_reset_control_get_exclusive(i2c_dev->dev, "i2c");
> 
> You see, if it had been simple 'dev', this line would have not been changed.
> 
> And so on.
> 

Alright, I'll move all the renamings into the "Clean up variable names"
patch, thanks.