linux-kernel - Re: [PATCH v4] regulator: pfuze100: add pfuze100 regulator driver

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Message-ID: <20130722124647.GK20271@S2101-09.ap.freescale.net>
Date:	Mon, 22 Jul 2013 20:46:49 +0800
From:	Shawn Guo <shawn.guo@...aro.org>
To:	Robin Gong <b38343@...escale.com>
CC:	<broonie@...nel.org>, <grant.likely@...aro.org>,
	<rob.herring@...xeda.com>, <rob@...dley.net>,
	<lgirdwood@...il.com>, <devicetree-discuss@...ts.ozlabs.org>,
	<linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4] regulator: pfuze100: add pfuze100 regulator driver

On Mon, Jul 22, 2013 at 06:39:36PM +0800, Robin Gong wrote:
> > > +static int pfuze_parse_regulators_dt(struct pfuze_chip *chip)
> > > +{
> > > +	struct device *dev = chip->dev;
> > > +	struct device_node *parent;
> > > +	int ret;
> > > +
> > > +	of_node_get(dev->parent->of_node);
> > > +	parent = of_find_node_by_name(dev->parent->of_node, "regulators");
> > > +	if (!parent) {
> > > +		dev_err(dev, "regulators node not found\n");
> > > +		return -EINVAL;
> > 
> > So you leave dev->parent->of_node unbalanced.
> > 
> Seems of_find_node_by_name will of_node_put the parent node.

Ah, yes.  I missed that.

Shawn

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