Re: [PATCH V8 04/10] USB: f81232: implement read IIR/MSR with endpoint

From: Peter Hung
Date: Mon Mar 16 2015 - 05:18:21 EST


Hello,

Johan Hovold æ 2015/3/16 äå 04:55 åé:
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
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