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authorClaire Chang <tientzu@chromium.org>2021-04-22 16:14:53 +0800
committerKonrad Rzeszutek Wilk <konrad@kernel.org>2021-04-23 08:30:15 -0400
commit8d4df6f4f09cea0a55f1dbff478a9a73b3ffdeb7 (patch)
treef7330bb0dc76936d76320524d0f80c06dbe4ea4c
parent2726bf3ff2520dba61fafc90a055640f7ad54e05 (diff)
downloadswiotlb-devel/for-linus-5.13.tar.gz
swiotlb: Fix the type of indexdevel/for-linus-5.13
Fix the type of index from unsigned int to int since find_slots() might return -1. Fixes: 0774983bc923 ("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>
-rw-r--r--kernel/dma/swiotlb.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index 0a5b6f7e75bce..8635a57f88e9e 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -499,7 +499,8 @@ phys_addr_t swiotlb_tbl_map_single(struct device *dev, phys_addr_t orig_addr,
{
struct io_tlb_mem *mem = io_tlb_default_mem;
unsigned int offset = swiotlb_align_offset(dev, orig_addr);
- unsigned int index, i;
+ unsigned int i;
+ int index;
phys_addr_t tlb_addr;
if (!mem)