From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Fri, 8 Feb 2013 09:54:48 +0000 (+0100)
Subject: ARM: DMA-mapping: fix memory leak in IOMMU dma-mapping implementation
X-Git-Tag: v3.9-rc1~74^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d589829107c5528164a9b7dfe50d0001780865ed;p=pandora-kernel.git

ARM: DMA-mapping: fix memory leak in IOMMU dma-mapping implementation

This patch removes page_address() usage in IOMMU-aware dma-mapping
implementation and replaced it with direct use of the cpu virtual address
provided by the caller. page_address() returned incorrect address for
pages remapped in atomic pool, what caused memory leak.

Reported-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Hiroshi Doyu <hdoyu@nvidia.com>
---

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