| commit | 66d7780f18eae0232827fcffeaded39a6a168236 | [log] [tgz] |
|---|---|---|
| author | Christoph Hellwig <hch@lst.de> | Mon Jul 08 11:51:56 2019 -0700 |
| committer | Christoph Hellwig <hch@lst.de> | Wed Jul 24 17:28:54 2019 +0200 |
| tree | 78bb0a0a0f8a11384dea615cc845185162ea531a | |
| parent | 06532750010e06dd4b6d69983773677df7fc5291 [diff] |
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>