swiotlb: Fix the type of index
[ Upstream commitpull/345/head^295b079d821
] Fix the type of index from unsigned int to int since find_slots() might return -1. Fixes:26a7e09478
("swiotlb: refactor swiotlb_tbl_map_single") Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Claire Chang <tientzu@chromium.org> Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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04dad2ca1f
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a01572e21f
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@ -563,7 +563,8 @@ phys_addr_t swiotlb_tbl_map_single(struct device *dev, phys_addr_t orig_addr,
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enum dma_data_direction dir, unsigned long attrs)
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{
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unsigned int offset = swiotlb_align_offset(dev, orig_addr);
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unsigned int index, i;
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unsigned int i;
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int index;
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phys_addr_t tlb_addr;
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if (no_iotlb_memory)
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