linux-kernel - Re: [PATCH] Staging: comedi: fix redundant parens in return in amplc_dio200

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Date:	Fri, 19 Dec 2014 12:37:16 +0200
From:	Aapo Vienamo <aapo.vienamo@....fi>
To:	Jeremiah Mahler <jmmahler@...il.com>, abbotti@....co.uk,
	hsweeten@...ionengravers.com, gregkh@...uxfoundation.org,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Staging: comedi: fix redundant parens in return in
 amplc_dio200_common.c

On Thu, Dec 18, 2014 at 02:45:01PM -0800, Jeremiah Mahler wrote:
> Aapo,
> 
> On Thu, Dec 18, 2014 at 05:32:52PM +0200, Aapo Vienamo wrote:
> > This patch fixes a coding style issue found by the checkpatch.pl tool in
> > amplc_dio200_common.c by removing the unnecessary parentheses around the
> > expression in a return statement.
> > 
> > Signed-off-by: Aapo Vienamo <aapo.vienamo@....fi>
> > ---
> >  drivers/staging/comedi/drivers/amplc_dio200_common.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/staging/comedi/drivers/amplc_dio200_common.c b/drivers/staging/comedi/drivers/amplc_dio200_common.c
> > index 26aad70..6eadbbe 100644
> > --- a/drivers/staging/comedi/drivers/amplc_dio200_common.c
> > +++ b/drivers/staging/comedi/drivers/amplc_dio200_common.c
> > @@ -340,7 +340,7 @@ static int dio200_handle_read_intr(struct comedi_device *dev,
> >  
> >  	comedi_handle_events(dev, s);
> >  
> > -	return (triggered != 0);
> > +	return triggered != 0;
> >  }
> >  
> [...]
> 
> When I run checkpatch.pl it doesn't find any errors and the parenthesis
> haven't been removed.  How are you running checkpatch.pl?  Are you using
> any extra options?

It looks like that I accidentally ran the file trough an older version
of checkpatch.pl. The error for this case was quieted in commit 
5b9553a (checkpatch: make "return is not a function" test quieter).

Sorry for the noise.

- Aapo Vienamo
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