linux-kernel - Re: [PATCH] [media] stk1160: Remove dead code from stk1160_i2c_read

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Message-ID: <alpine.LNX.2.00.1210152025300.1038@swampdragon.chaosbits.net>
Date:	Mon, 15 Oct 2012 20:26:37 +0200 (CEST)
From:	Jesper Juhl <jj@...osbits.net>
To:	Ezequiel Garcia <elezegarcia@...il.com>
cc:	Mauro Carvalho Chehab <mchehab@...radead.org>,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [media] stk1160: Remove dead code from
 stk1160_i2c_read_reg()

On Sat, 13 Oct 2012, Ezequiel Garcia wrote:

> On Sun, Nov 9, 2008 at 2:04 PM, Jesper Juhl <jj@...osbits.net> wrote:
> > There are two checks for 'rc' being less than zero with no change to
> > 'rc' between the two, so the second is just dead code - remove it.
> >
> > Signed-off-by: Jesper Juhl <jj@...osbits.net>
> > ---
> >  drivers/media/usb/stk1160/stk1160-i2c.c |    3 ---
> >  1 files changed, 0 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/media/usb/stk1160/stk1160-i2c.c b/drivers/media/usb/stk1160/stk1160-i2c.c
> > index 176ac93..035cf8c 100644
> > --- a/drivers/media/usb/stk1160/stk1160-i2c.c
> > +++ b/drivers/media/usb/stk1160/stk1160-i2c.c
> > @@ -117,9 +117,6 @@ static int stk1160_i2c_read_reg(struct stk1160 *dev, u8 addr,
> >                 return rc;
> >
> >         stk1160_read_reg(dev, STK1160_SBUSR_RD, value);
> > -       if (rc < 0)
> > -               return rc;
> > -
> >         return 0;
> >  }
> >
> 
> Thanks for doing this. Wouldn't you like to save stk1160_read_reg
> return code to rc, instead of this?
> 
Ahh yes, I guess I was too quick to just assume it was dead code. 
Looking at it again; what you suggest must have been the original 
intention. I'll cook up a new patch.

Thanks.

-- 
Jesper Juhl <jj@...osbits.net>       http://www.chaosbits.net/
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