Fix for one swiotlb regression in 2.16 from Takashi.

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Merge tag 'dma-mapping-4.17-2' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping fix from Christoph Hellwig:
 "Fix for one swiotlb regression in 2.16 from Takashi"

* tag 'dma-mapping-4.17-2' of git://git.infradead.org/users/hch/dma-mapping:
  swiotlb: fix unexpected swiotlb_alloc_coherent failures

This commit is contained in:

Linus Torvalds

2018-04-12 11:00:48 -07:00

Родитель d1cb7718cf 9e7f06c8be

Коммит c5c177c5fd

1 изменённых файлов: 1 добавлений и 1 удалений

									
										2

lib/swiotlb.c

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				@ -719,7 +719,7 @@ swiotlb_alloc_buffer(struct device *dev, size_t size, dma_addr_t *dma_handle,

						goto out_warn;

					*dma_handle = __phys_to_dma(dev, phys_addr);

					if (dma_coherent_ok(dev, *dma_handle, size))

					if (!dma_coherent_ok(dev, *dma_handle, size))

						goto out_unmap;

					memset(phys_to_virt(phys_addr), 0, size);

Fix for one swiotlb regression in 2.16 from Takashi.

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lib/swiotlb.c

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