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Subject: Re: [PATCH 2/3] pwm: pwm-omap-dmtimer: Fix frequency when using
 prescaler
To:     Ladislav Michl <ladis@linux-mips.org>,
        Claudiu Beznea <Claudiu.Beznea@microchip.com>
CC:     <linux-omap@vger.kernel.org>, <linux-pwm@vger.kernel.org>,
        <daniel.lezcano@linaro.org>, <thierry.reding@gmail.com>,
        <tony@atomide.com>, <aaro.koskinen@iki.fi>,
        <narmstrong@baylibre.com>, <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <sebastian.reichel@collabora.co.uk>, <robh+dt@kernel.org>,
        <t-kristo@ti.com>, <grygorii.strashko@ti.com>
References: <20180117214629.GA11952@lenoch> <20180117214737.GC11952@lenoch>
 <3e00e721-984c-e8db-49f7-046d7b335404@microchip.com>
 <20180122105331.GA21159@lenoch>
From:   Keerthy <j-keerthy@ti.com>
Message-ID: <cc075969-872e-1ec1-a854-2e19f2c952fe@ti.com>
Date:   Wed, 24 Jan 2018 10:56:07 +0530
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On Monday 22 January 2018 04:23 PM, Ladislav Michl wrote:
> Dear Claudiu,
> 
> On Mon, Jan 22, 2018 at 11:17:08AM +0200, Claudiu Beznea wrote:
>> On 17.01.2018 23:47, Ladislav Michl wrote:
>>> @@ -334,18 +348,18 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev)
>>>  
>>>  	mutex_init(&omap->mutex);
>>>  
>>> -	status = pwmchip_add(&omap->chip);
>>> -	if (status < 0) {
>>> +	ret = pwmchip_add(&omap->chip);
>>> +	if (ret < 0) {
>>>  		dev_err(&pdev->dev, "failed to register PWM\n");
>>> -		omap->pdata->free(omap->dm_timer);
>>> -		ret = status;
>>> -		goto put;
>>> +		goto free;
>>>  	}
>>>  
>>>  	platform_set_drvdata(pdev, omap);
>> >From documentation: "of_parse_phandle(): Returns the device_node pointer with refcount
>> incremented. Use of_node_put() on it when done."
>> In case of success the of_node_put() should also be called as I see.
> 
> Based on you previous suggestions found here:
> https://patchwork.kernel.org/patch/10140209/
> I'd say this fix belongs to patch which introduces of_node_put() in the error
> path. I'll then rebase this patches on top of the fix.

Agreed. I missed the success path as i assumed only error paths needed
te of_node_put(). I will post v8 of this patch alone as other patches
can be left untouched. Hope that is okay.

Regards,
Keerthy
> 
> Thank you,
> 	ladis
>