From: Claire Chang tientzu@chromium.org
[ Upstream commit 95b079d8215b83b37fa59341fda92fcb9392f14a ]
Fix the type of index from unsigned int to int since find_slots() might return -1.
Fixes: 26a7e094783d ("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 --- kernel/dma/swiotlb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index ba4055a192e4..0f61b14b0099 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -563,7 +563,8 @@ phys_addr_t swiotlb_tbl_map_single(struct device *dev, phys_addr_t orig_addr, enum dma_data_direction dir, unsigned long attrs) { unsigned int offset = swiotlb_align_offset(dev, orig_addr); - unsigned int index, i; + unsigned int i; + int index; phys_addr_t tlb_addr;
if (no_iotlb_memory)