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[v2,1/4] crypto: amlogic - Fix the parameter of dma_unmap_sg()

Message ID 1615859726-57062-2-git-send-email-chenxiang66@hisilicon.com
State Accepted
Commit 5595d0dc1d33b36843166644bb33d94c0e34942e
Headers show
Series [v2,1/4] crypto: amlogic - Fix the parameter of dma_unmap_sg() | expand

Commit Message

chenxiang March 16, 2021, 1:55 a.m. UTC 
From: Xiang Chen <chenxiang66@hisilicon.com>

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>
---
 drivers/crypto/amlogic/amlogic-gxl-cipher.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
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Patch

diff --git a/drivers/crypto/amlogic/amlogic-gxl-cipher.c b/drivers/crypto/amlogic/amlogic-gxl-cipher.c
index 8b5e073..c6865cbd 100644
--- a/drivers/crypto/amlogic/amlogic-gxl-cipher.c
+++ b/drivers/crypto/amlogic/amlogic-gxl-cipher.c
@@ -236,10 +236,10 @@  static int meson_cipher(struct skcipher_request *areq)
 	dma_unmap_single(mc->dev, phykeyiv, keyivlen, DMA_TO_DEVICE);
 
 	if (areq->src == areq->dst) {
-		dma_unmap_sg(mc->dev, areq->src, nr_sgs, DMA_BIDIRECTIONAL);
+		dma_unmap_sg(mc->dev, areq->src, sg_nents(areq->src), DMA_BIDIRECTIONAL);
 	} else {
-		dma_unmap_sg(mc->dev, areq->src, nr_sgs, DMA_TO_DEVICE);
-		dma_unmap_sg(mc->dev, areq->dst, nr_sgd, DMA_FROM_DEVICE);
+		dma_unmap_sg(mc->dev, areq->src, sg_nents(areq->src), DMA_TO_DEVICE);
+		dma_unmap_sg(mc->dev, areq->dst, sg_nents(areq->dst), DMA_FROM_DEVICE);
 	}
 
 	if (areq->iv && ivsize > 0) {