linux-kernel - RE: [PATCH] regulators: add support max8952 regulator

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Message-id: <01e301cb4bb1$ac1fa240$045ee6c0$%kim@samsung.com>
Date:	Sat, 04 Sep 2010 06:47:52 +0900
From:	Kukjin Kim <kgene.kim@...sung.com>
To:	'Mark Brown' <broonie@...nsource.wolfsonmicro.com>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	'Changhwan Youn' <chaos.youn@...sung.com>, lrg@...mlogic.co.uk
Subject: RE: [PATCH] regulators: add support max8952 regulator

Mark Brown wrote:
> 
Hi,

Thanks for your review.

> On Fri, Sep 03, 2010 at 10:15:24AM +0900, Kukjin Kim wrote:
> 
> > +	ret2 = max8649_reg_read(info->i2c, MAX8649_CHIP_ID2);
> > +	if (ret2 < 0) {
> > +		dev_err(info->dev, "Failed to detect ID of %s:%d\n",
> > +			id->name, ret2);
> >  		goto out;
> >  	}
> 
> If the read fails you'll not set an error code when you jump to out so
> the probe will report success.  It might be clearer to have separate id
> variables which you store the read values into if they're OK, just from
> a legibility point of view.
> 
Ok..will fix it.

> > -	dev_info(info->dev, "Detected MAX8649 (ID:%x)\n", ret);
> > +	dev_info(info->dev, "Detected %s (ID:%x %x)\n", id->name, ret,
ret2);
> > +
> > +	info->type = id->driver_data;
> 
> It'd be nice to check that the type that was supplied matches the ID
> read from the chip in case the user got things wrong, just for
> defensiveness.

Ok..will modify as per your suggestion.

Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@...sung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.

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