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ARM: DMA-mapping: fix memory leak in IOMMU dma-mapping implementation
authorMarek Szyprowski <m.szyprowski@samsung.com>
Fri, 8 Feb 2013 09:54:48 +0000 (10:54 +0100)
committerMarek Szyprowski <m.szyprowski@samsung.com>
Mon, 25 Feb 2013 14:30:44 +0000 (15:30 +0100)
commitd589829107c5528164a9b7dfe50d0001780865ed
treeea20dc2f831a19940ed4473eb163c277b73b5115tree | snapshot
parent60460abffc71523d65774f43ce1252972eeb0629commit | diff
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>
arch/arm/mm/dma-mapping.c diff | blob | history
Domain: System / Kernel;