Re: [PATCH] tty: serdev: fix serdev_device_write return value

[Greg Kroah-Hartman]

On Wed, May 03, 2017 at 08:44:07PM +0300, Andy Shevchenko wrote:
> On Tue, May 2, 2017 at 12:25 PM, Johan Hovold <johan@xxxxxxxxxx> wrote:
> > On Mon, May 01, 2017 at 07:17:14PM -0500, Rob Herring wrote:
> 
> >> -     return ret < 0 ? ret : (count ? -ETIMEDOUT : 0);
> >> +     return ret < 0 ? ret : (count ? -ETIMEDOUT : wr_cnt);
> >
> > That's some nasty use of the ternary operator. Ditching it completely
> > would be more readable.
> >
> >         if (ret < 0)
> >                 return ret;
> >
> >         if (count)
> >                 return -ETIMEDOUT;
> >
> >         return wr_count;
> 
> 
> While I agree on the first part, I would go still with one ternary at the end:
> 
>             return count ? -ETIMEDOUT : wr_count;

Ick, no, make it easy to read, we write code for developers first, the
compiler second.  Ditching it completly is a good idea.

thanks,

greg k-h