From: Peter Hung <hpeter@gmail.com>
To: Johan Hovold <johan@kernel.org>
Cc: gregkh@linuxfoundation.org, linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org, tom_tsai@fintek.com.tw,
peter_hong@fintek.com.tw,
Peter Hung <hpeter+linux_kernel@gmail.com>
Subject: Re: [PATCH V8 04/10] USB: f81232: implement read IIR/MSR with endpoint
Date: Mon, 16 Mar 2015 17:18:11 +0800 [thread overview]
Message-ID: <55069FD3.2080807@gmail.com> (raw)
In-Reply-To: <20150316085501.GB14918@localhost>
Hello,
Johan Hovold 於 2015/3/16 下午 04:55 寫道:
> On Mon, Mar 16, 2015 at 11:08:29AM +0800, Peter Hung wrote:
>>> Could you rewrite this as
>>>
>>> if (status < 0)
>>> status = usb_translate_errors(status);
>>> else
>>> status = 0;
>>
>> In my definition the return value of set/getregister(), 0 is success,
>> negative values are errors. The function usb_control_msg() return value
>> is success transmited/received byte. It's maybe return 0. I want to
>> treat 0 with error(-EIO). But if pass 0 to usb_translate_errors(), It
>> will return 0 back. So I need especially handle with status == 0.
>
> I meant to write
>
> if (status < 0)
> status = usb_translate_errors(status);
> else
> status = -EIO;
>
> which I think is more readable.
It's looks more readable of the style that you mentioned.
Thanks for your advice, I'll add it with next patch.
--
With Best Regards,
Peter Hung
next prev parent reply other threads:[~2015-03-16 9:18 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-26 10:02 [PATCH V8 00/10] USB: f81232: V8 patches Peter Hung
2015-02-26 10:02 ` [PATCH V8 01/10] USB: f81232: rename private struct member name Peter Hung
2015-02-26 10:02 ` [PATCH V8 02/10] USB: f81232: implement RX bulk-in EP Peter Hung
2015-03-14 11:48 ` Johan Hovold
2015-03-16 2:53 ` Peter Hung
2015-03-16 8:52 ` Johan Hovold
2015-03-16 9:15 ` Peter Hung
2015-02-26 10:02 ` [PATCH V8 03/10] USB: f81232: change lock mechanism Peter Hung
2015-02-26 10:02 ` [PATCH V8 04/10] USB: f81232: implement read IIR/MSR with endpoint Peter Hung
2015-03-14 12:02 ` Johan Hovold
2015-03-16 3:08 ` Peter Hung
2015-03-16 8:55 ` Johan Hovold
2015-03-16 9:18 ` Peter Hung [this message]
2015-02-26 10:02 ` [PATCH V8 05/10] USB: f81232: implement MCR/MSR function Peter Hung
2015-03-14 12:09 ` Johan Hovold
2015-02-26 10:02 ` [PATCH V8 06/10] USB: f81232: implement port enable/disable method Peter Hung
2015-02-26 10:02 ` [PATCH V8 07/10] USB: f81232: implement set_termios() Peter Hung
2015-03-14 12:24 ` Johan Hovold
2015-02-26 10:02 ` [PATCH V8 08/10] USB: f81232: clarify f81232_ioctl() and fix Peter Hung
2015-03-14 12:27 ` Johan Hovold
2015-02-26 10:02 ` [PATCH V8 09/10] USB: f81232: cleanup non-used define Peter Hung
2015-02-26 10:02 ` [PATCH V8 10/10] USB: f81232: modify/add author Peter Hung
2015-03-05 5:59 ` [PATCH V8 00/10] USB: f81232: V8 patches Peter Hung
2015-03-05 7:03 ` Johan Hovold
2015-03-14 12:30 ` Johan Hovold
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