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crypto: cavium - Fix the parameter of dma_unmap_sg()

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For function dma_unmap_sg(), the <nents> parameter should be number of
elements in the scatterlist prior to the mapping, not after the mapping.
So fix this usage.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Xiang Chen 2021-03-16 09:55:24 +08:00 committed by Herbert Xu
parent 5595d0dc1d
commit c114ecd3a1
1 changed files with 5 additions and 4 deletions
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9
drivers/crypto/cavium/nitrox/nitrox_reqmgr.c
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@ -58,14 +58,15 @@ static void softreq_unmap_sgbufs(struct nitrox_softreq *sr)
struct device *dev = DEV(ndev);
dma_unmap_sg(dev, sr->in.sg, sr->in.sgmap_cnt, DMA_BIDIRECTIONAL);
dma_unmap_sg(dev, sr->in.sg, sg_nents(sr->in.sg),
DMA_BIDIRECTIONAL);
dma_unmap_single(dev, sr->in.sgcomp_dma, sr->in.sgcomp_len,
DMA_TO_DEVICE);
kfree(sr->in.sgcomp);
sr->in.sg = NULL;
sr->in.sgmap_cnt = 0;
dma_unmap_sg(dev, sr->out.sg, sr->out.sgmap_cnt,
dma_unmap_sg(dev, sr->out.sg, sg_nents(sr->out.sg),
DMA_BIDIRECTIONAL);
dma_unmap_single(dev, sr->out.sgcomp_dma, sr->out.sgcomp_len,
DMA_TO_DEVICE);
@ -178,7 +179,7 @@ static int dma_map_inbufs(struct nitrox_softreq *sr,
return 0;
incomp_err:
dma_unmap_sg(dev, req->src, nents, DMA_BIDIRECTIONAL);
dma_unmap_sg(dev, req->src, sg_nents(req->src), DMA_BIDIRECTIONAL);
sr->in.sgmap_cnt = 0;
return ret;
}
@ -203,7 +204,7 @@ static int dma_map_outbufs(struct nitrox_softreq *sr,
return 0;
outcomp_map_err:
dma_unmap_sg(dev, req->dst, nents, DMA_BIDIRECTIONAL);
dma_unmap_sg(dev, req->dst, sg_nents(req->dst), DMA_BIDIRECTIONAL);
sr->out.sgmap_cnt = 0;
sr->out.sg = NULL;
return ret;