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

[Thomas Gleixner]

On Tue, 20 Dec 2016, Ozgur Karatas wrote:
> 20.12.2016, 11:21, "Thomas Gleixner" <tglx@xxxxxxxxxxxxx>:
> > On Mon, 19 Dec 2016, Ozgur Karatas wrote:
> >
> >> Âelse doesn't need to be used, if should be enclosed in parentheses.
> >
> > Really?
> >
> >
> > So you change the code from
> >
> > ÂÂÂÂÂÂÂÂif (err < 0)
> > ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂreturn err;
> > ÂÂÂÂÂÂÂÂÂÂÂÂelse
> > ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂerr = 0;
> >
> > to
> >
> > ÂÂÂÂÂÂÂÂif (err < 0) {
> > ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂreturn err;
> > ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂerr = 0;
> > ÂÂÂÂÂÂÂÂ}
> >
> > 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;
> 
>  ÂÂÂÂÂÂÂÂif (err < 0) {
>  ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂreturn err;
>  ÂÂÂÂÂÂÂÂ}

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

Thanks,

	tglx