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Date: Tue, 20 Dec 2016 11:36:58 +0100 (CET)
From: Thomas Gleixner <tglx@linutronix.de>
To: Ozgur Karatas <okaratas@member.fsf.org>
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Subject: Re: [PATCH 1/1] kernel: futex: fixed to else and initcall
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Message-ID: <alpine.DEB.2.20.1612201134290.3436@nanos>
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On Tue, 20 Dec 2016, Ozgur Karatas wrote:
> 20.12.2016, 11:21, "Thomas Gleixner" <tglx@linutronix.de>:
> > On Mon, 19 Dec 2016, Ozgur Karatas wrote:
> >
> >>  else doesn't need to be used, if should be enclosed in parentheses.
> >
> > Really?
> >
> >
> > So you change the code from
> >
> >         if (err < 0)
> >                 return err;
> >             else
> >                 err = 0;
> >
> > to
> >
> >         if (err < 0) {
> >                 return err;
> >                 err = 0;
> >         }
> >
> > How on earth is that equivivalent and how would that 'err = 0;' statement
> > be ever executed?
> 
> Oh my god, I missed this point, sorry! 
> Thank you so much for correct me.
> 
> This "return err;" will give to "err" and err defined to err = "0".
> Then removed to "else" and return = err;  and should it be like this?
> 
> #define err = 0;
> 
>          if (err < 0) {
>                  return err;
>          }

I seriously recommend to take a basic C course first before trying to
change code in the kernel.

Thanks,

	tglx


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