linux-kernel - Re: [PATCH] trivial: adjust code alignment

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Date:	Mon, 5 Aug 2013 19:30:54 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Joe Perches <joe@...ches.com>
Cc:	Julia Lawall <Julia.Lawall@...6.fr>, trivial@...nel.org,
	kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] trivial: adjust code alignment

On Mon, Aug 05, 2013 at 09:17:07AM -0700, Joe Perches wrote:
> On Mon, 2013-08-05 at 19:06 +0300, Dan Carpenter wrote:
> > On Mon, Aug 05, 2013 at 04:47:39PM +0200, Julia Lawall wrote:
> > > diff --git a/drivers/media/i2c/ov7670.c b/drivers/media/i2c/ov7670.c
> []
> > > @@ -1369,8 +1369,8 @@ static int ov7670_s_exp(struct v4l2_subdev *sd, int value)
> > >  	unsigned char com1, com8, aech, aechh;
> > >  
> > >  	ret = ov7670_read(sd, REG_COM1, &com1) +
> > > -		ov7670_read(sd, REG_COM8, &com8);
> > > -		ov7670_read(sd, REG_AECHH, &aechh);
> > > +	ov7670_read(sd, REG_COM8, &com8);
> > > +	ov7670_read(sd, REG_AECHH, &aechh);
> > >  	if (ret)
> > >  		return ret;
> > >  
> > 
> > The new indenting isn't correct here and anyway the intent was to
> > combine all the error codes together and return them as an error
> > code jumble.  I'm not a fan of error code jumbles, probably the
> > right thing is to check each function call or, barring that, to
> > return -EIO.
> 
> ov7670_read via i2c_transfer can return a positive # too.
> Perhaps all of these should be individually tested for "< 0".

You're misreading something.  ov7670_read_i2c() only returns zero
and negative error codes.

regards,
dan carpenter

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