ia64/sn: remove the mapping_error dma_map_ops method
Return DMA_MAPPING_ERROR instead of 0 on a dma mapping failure and let the core dma-mapping code handle the rest. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
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07256950cd
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608b9761a0
1 changed files with 1 additions and 7 deletions
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@ -196,7 +196,7 @@ static dma_addr_t sn_dma_map_page(struct device *dev, struct page *page,
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if (!dma_addr) {
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printk(KERN_ERR "%s: out of ATEs\n", __func__);
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return 0;
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return DMA_MAPPING_ERROR;
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}
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return dma_addr;
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}
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@ -314,11 +314,6 @@ static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
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return nhwentries;
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}
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static int sn_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
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{
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return 0;
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}
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static u64 sn_dma_get_required_mask(struct device *dev)
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{
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return DMA_BIT_MASK(64);
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@ -441,7 +436,6 @@ static struct dma_map_ops sn_dma_ops = {
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.unmap_page = sn_dma_unmap_page,
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.map_sg = sn_dma_map_sg,
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.unmap_sg = sn_dma_unmap_sg,
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.mapping_error = sn_dma_mapping_error,
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.dma_supported = sn_dma_supported,
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.get_required_mask = sn_dma_get_required_mask,
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};
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