linux-kernel - Re: [PATCHv5 02/16] drivers: thermal: introduce device tree parser

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Message-ID: <523A19B3.2090908@ti.com>
Date:	Wed, 18 Sep 2013 17:22:59 -0400
From:	Eduardo Valentin <eduardo.valentin@...com>
To:	Joe Perches <joe@...ches.com>
CC:	Eduardo Valentin <eduardo.valentin@...com>,
	<swarren@...dotorg.org>, <pawel.moll@....com>,
	<mark.rutland@....com>, <ian.campbell@...rix.com>,
	<rob.herring@...xeda.com>, <linux@...ck-us.net>,
	<rui.zhang@...el.com>, <wni@...dia.com>, <grant.likely@...aro.org>,
	<durgadoss.r@...el.com>, <lm-sensors@...sensors.org>,
	<linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>
Subject: Re: [PATCHv5 02/16] drivers: thermal: introduce device tree parser

On 18-09-2013 17:04, Joe Perches wrote:
> On Wed, 2013-09-18 at 16:57 -0400, Eduardo Valentin wrote:
>> This patch introduces a device tree bindings for
>> describing the hardware thermal behavior and limits.
>> Also a parser to read and interpret the data and feed
>> it in the thermal framework is presented.
> []
>> +int __init of_parse_thermal_zones(void)
>> +{
>> +	struct device_node *np, *child;
>> +	struct __thermal_zone *tz;
>> +	struct thermal_zone_device_ops *ops;
> []
>> +		if (!ops)
>> +			return -ENOMEM;
>> +
>> +		tzp = kzalloc(sizeof(*tzp), GFP_KERNEL);
>> +		if (!tzp)
>> +			return -ENOMEM;
> 
> leaking memory when ops && !tpz

Yeah, and if !ops too. I am reposting with proper kfreeing. I will be
rolling back the added thermal zones when there is an OOM situation too.

> 
>> +
>> +		/* No hwmon because there might be hwmon drivers registering */
>> +		tzp->no_hwmon = true;
>> +
>> +		zone = thermal_zone_device_register(child->name, tz->ntrips,
>> +						    0, tz,
>> +						    ops, tzp,
>> +						    tz->passive_delay,
>> +						    tz->polling_delay);
>> +		if (IS_ERR(zone))
>> +			pr_err("Failed to build %s zone %ld\n", child->name,
>> +			       PTR_ERR(zone));
>> +	}
> 
> Still leaking memory if !zone no?

yeah. Will free them too.
> 
>> +
>> +	return 0;
>> +}
> 
> 
> 
> 


-- 
You have got to be excited about what you are doing. (L. Lamport)

Eduardo Valentin


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