linux-kernel - Re: [PATCH RFC] c_can_pci: generic module for c

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Date:	Tue, 12 Jun 2012 16:46:32 +0200
From:	Marc Kleine-Budde <mkl@...gutronix.de>
To:	Federico Vaga <federico.vaga@...il.com>
CC:	Wolfgang Grandegger <wg@...ndegger.com>,
	Giancarlo Asnaghi <giancarlo.asnaghi@...com>,
	Alan Cox <alan@...ux.intel.com>,
	Alessandro Rubini <rubini@...dd.com>,
	linux-can@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC] c_can_pci: generic module for c_can on PCI

On 06/12/2012 04:25 PM, Federico Vaga wrote:
>>> +out_free_clock:
>>> +	if (!priv->priv)
>>
>>            ^^^
>>
>> looks fishy
> 
> Also c_can_platform.c use priv->priv when it needs to get clk. I can add 
> a comment to specify what the statement do.

> +out_free_clock:
> +	if (!priv->priv)
> +		clk_put(priv->priv);

Why do you call clk_put on priv->priv, if priv->priv is NULL?

Marc

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