linux-kernel - Re: [PATCH] ARM: imx: add missing kfree call in error paths

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Message-ID: <20140522135016.GK15585@mwanda>
Date:	Thu, 22 May 2014 16:50:16 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Emil Goode <emilgoode@...il.com>
Cc:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>,
	Shawn Guo <shawn.guo@...escale.com>,
	Sascha Hauer <kernel@...gutronix.de>,
	Russell King <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] ARM: imx: add missing kfree call in error paths

On Thu, May 22, 2014 at 03:14:42PM +0200, Emil Goode wrote:
> We forgot to free pdev->dev.dma_mask as it is not freed
> by platform_device_put().
> 

Every function which calls imx31_alloc_mx3_camera() is buggy.  That
means that, at best, it is a 2 on Rusty's API rating.
http://sweng.the-davies.net/Home/rustys-api-design-manifesto

The correct fix is to introduce an imx31_free_mx3_camera() otherwise we
will just keep introducing these bugs.

regards,
dan carpenter

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