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| author | Mitchel Humpherys <mitchelh@codeaurora.org> | 2015-03-04 15:13:52 -0800 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-22 11:11:45 -0700 |
| commit | 9c66ec14770fd39646f63d887607c7d56a126f94 (patch) | |
| tree | c012a51e8d0bea913f5ffd768c097477a5ea63ba /include/linux/kernel.h | |
| parent | 93684aed807d277efef77b6e638b69010e8ebde5 (diff) | |
iommu/arm-smmu: fix leak in arm_smmu_flush_pgtable
We're currently mapping a page in arm_smmu_flush_pgtable without ever
unmapping it. Fix this by calling dma_unmap_page on the returned dma
address. Since the only reason we're calling dma_map_page is to make
sure it actually gets flushed out to RAM, we can just call
dma_unmap_page immediately following the map.
Without this, eventually swiotlb runs out of memory and starts printing
things like:
arm-smmu d00000.arm,smmu: swiotlb buffer is full (sz: 128 bytes)
Change-Id: I69421de6e2189a16cd88f225e2698cd88d669dff
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Diffstat (limited to 'include/linux/kernel.h')
0 files changed, 0 insertions, 0 deletions