linux-kernel - Re: [PATCH v2 01/21] usb: phy: use match

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Message-ID: <d06e5dd2-cee8-7648-c4e0-3f65977e0510@cogentembedded.com>
Date:   Thu, 31 May 2018 21:56:06 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Yisheng Xie <xieyisheng1@...wei.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        USB <linux-usb@...r.kernel.org>, Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v2 01/21] usb: phy: use match_string() helper

On 05/31/2018 09:47 PM, Andy Shevchenko wrote:

>>>  - donot rename err to ret  - per Andy
>>
>>    Hm...
> 
>>> -     int err, i;
> 
>>> +     err = match_string(usbphy_modes, ARRAY_SIZE(usbphy_modes), phy_type);
>>> +     if (err < 0)
>>
>>    This is one of the few cases when 'err' is not the best name for such a
>> variable. I'd prefer to see something like 'match' or even 'rc' or 'ret'... :-)
> 
> Then leaving i would make it?

   Yes. :-)

> I'm okay with either which just not renames err, b/c it's used with
> something else in this function.

   Looking at it again, 'err' seems equally bad for the result of 
of_property_read_string()... unless the check there is changed to just *if* (err) --
this function never returns positive values, 0 means success, others mean error.

MBR, Sergei