crypto: amlogic - Fix the parameter of dma_unmap_sg()

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>

diff --git a/drivers/crypto/amlogic/amlogic-gxl-cipher.c b/drivers/crypto/amlogic/amlogic-gxl-cipher.c
index 8b5e07316352c3df6ac52ea27bebd11c0897fe72..c6865cbd334b293bec18184dc128bc2863d7546f 100644 (file)
--- 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) {