linux-kernel - Re: [PATCH] net_dma: fix memory leak in dma_pin_iocvec

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Message-ID: <20140924045701.GR24663@intel.com>
Date:	Wed, 24 Sep 2014 10:27:01 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Roman Gushchin <klamm@...dex-team.ru>
Cc:	dan.j.williams@...el.com, dmaengine@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net_dma: fix memory leak in dma_pin_iocvec_pages

On Wed, Sep 03, 2014 at 01:28:59PM +0400, Roman Gushchin wrote:
> dma_pin_iovec_pages() calls get_user_pages() for each iovec. If
> get_user_pages() returns a number smaller than the requested number,
> dma_pin_iovec_pages() calls dma_unpin_iovec_pages(). It releases
> previously allocated iovecs, but pages pinned by last get_user_pages()
> call remain unreleased.
> Fix this by calling put_page() for each such page.
> 
Applied, thanks

-- 
~Vinod
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