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path: root/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
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Diffstat (limited to 'drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c')
-rw-r--r--drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
index 19b7fb4a93e8..63e66a85477e 100644
--- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
+++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
@@ -265,8 +265,8 @@ static int sun8i_ce_cipher_prepare(struct crypto_engine *engine, void *async_req
}
chan->timeout = areq->cryptlen;
- rctx->nr_sgs = nr_sgs;
- rctx->nr_sgd = nr_sgd;
+ rctx->nr_sgs = ns;
+ rctx->nr_sgd = nd;
return 0;
theend_sgs:
@@ -275,13 +275,16 @@ theend_sgs:
} else {
if (nr_sgs > 0)
dma_unmap_sg(ce->dev, areq->src, ns, DMA_TO_DEVICE);
- dma_unmap_sg(ce->dev, areq->dst, nd, DMA_FROM_DEVICE);
+
+ if (nr_sgd > 0)
+ dma_unmap_sg(ce->dev, areq->dst, nd, DMA_FROM_DEVICE);
}
theend_iv:
if (areq->iv && ivsize > 0) {
- if (rctx->addr_iv)
+ if (!dma_mapping_error(ce->dev, rctx->addr_iv))
dma_unmap_single(ce->dev, rctx->addr_iv, rctx->ivlen, DMA_TO_DEVICE);
+
offset = areq->cryptlen - ivsize;
if (rctx->op_dir & CE_DECRYPTION) {
memcpy(areq->iv, chan->backup_iv, ivsize);