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| author |   Christoph Hellwig <hch@lst.de> | 2019-07-08 11:51:56 -0700 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2019-07-24 17:28:54 +0200 |
| commit | 66d7780f18eae0232827fcffeaded39a6a168236 (patch) | |
| tree | 78bb0a0a0f8a11384dea615cc845185162ea531a /arch/arm/mm/dma-mapping.c | |
| parent | dma-mapping: use dma_get_mask in dma_addressing_limited (diff) | |
| download | linux-dev-66d7780f18eae0232827fcffeaded39a6a168236.tar.xz linux-dev-66d7780f18eae0232827fcffeaded39a6a168236.zip | |
dma-mapping: check pfn validity in dma_common_{mmap,get_sgtable}
Check that the pfn returned from arch_dma_coherent_to_pfn refers to
a valid page and reject the mmap / get_sgtable requests otherwise.
Based on the arm implementation of the mmap and get_sgtable methods.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Vignesh Raghavendra <vigneshr@ti.com>
Diffstat (limited to 'arch/arm/mm/dma-mapping.c')
0 files changed, 0 insertions, 0 deletions