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Re: [PATCH 1/1] kernel: futex: fixed to else and initcall

From Thomas Gleixner <tglx@linutronix.de>
Newsgroups linux.kernel
Subject Re: [PATCH 1/1] kernel: futex: fixed to else and initcall
Date 2016-12-20 12:20 +0100
Message-ID <sQqCB-4RO-11@gated-at.bofh.it> (permalink)
References <sQdcl-4ko-5@gated-at.bofh.it> <sQoUa-3JN-5@gated-at.bofh.it> <sQp3Q-3Nb-37@gated-at.bofh.it>
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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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[PATCH 1/1] kernel: futex: fixed to else and initcall Ozgur Karatas <okaratas@member.fsf.org> - 2016-12-19 22:00 +0100
  Re: [PATCH 1/1] kernel: futex: fixed to else and initcall Thomas Gleixner <tglx@linutronix.de> - 2016-12-20 10:30 +0100
    Re: [PATCH 1/1] kernel: futex: fixed to else and initcall Ozgur Karatas <okaratas@member.fsf.org> - 2016-12-20 10:40 +0100
      Re: [PATCH 1/1] kernel: futex: fixed to else and initcall Thomas Gleixner <tglx@linutronix.de> - 2016-12-20 12:20 +0100

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