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

[chenxiang]

From: Xiang Chen <chenxian...@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 <chenxian...@hisilicon.com>
---
 drivers/crypto/amlogic/amlogic-gxl-cipher.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

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) {
-- 
2.8.1