linux-kernel - Re: [PATCH] dmaengine: dw: fix potential memory leak in dw_dma_parse

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Message-ID: <20151218053008.GS1854@localhost>
Date:	Fri, 18 Dec 2015 11:00:08 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Mans Rullgard <mans@...sr.com>
Cc:	Viresh Kumar <vireshk@...nel.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Dan Williams <dan.j.williams@...el.com>,
	dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
	Julian Margetson <runaway@...dw.ms>
Subject: Re: [PATCH] dmaengine: dw: fix potential memory leak in
 dw_dma_parse_dt()

On Thu, Dec 17, 2015 at 11:30:57PM +0000, Mans Rullgard wrote:
> If the "dma-channels" DT property is missing, the dw_dma_parse_dt()
> function return NULL, but not before allocating memory for a struct
> dw_dma_platform_data through devres.  If the device supports parameter
> detection, the probe still succeeds and the allocated memory is not
> released until the device is removed.
> 
> Fix this by deferring the allocation until after checking the
> "dma-channels" property.

Applied, thanks

-- 
~Vinod
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