diff options
| -rw-r--r-- | drivers/crypto/qce/skcipher.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/crypto/qce/skcipher.c b/drivers/crypto/qce/skcipher.c index c0a0d8c4fce1..259418479227 100644 --- a/drivers/crypto/qce/skcipher.c +++ b/drivers/crypto/qce/skcipher.c @@ -72,7 +72,7 @@ qce_skcipher_async_req_handle(struct crypto_async_request *async_req) struct scatterlist *sg; bool diff_dst; gfp_t gfp; - int ret; + int dst_nents, src_nents, ret; rctx->iv = req->iv; rctx->ivsize = crypto_skcipher_ivsize(skcipher); @@ -123,21 +123,22 @@ qce_skcipher_async_req_handle(struct crypto_async_request *async_req) sg_mark_end(sg); rctx->dst_sg = rctx->dst_tbl.sgl; - ret = dma_map_sg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst); - if (ret < 0) + dst_nents = dma_map_sg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst); + if (dst_nents < 0) goto error_free; if (diff_dst) { - ret = dma_map_sg(qce->dev, req->src, rctx->src_nents, dir_src); - if (ret < 0) + src_nents = dma_map_sg(qce->dev, req->src, rctx->src_nents, dir_src); + if (src_nents < 0) goto error_unmap_dst; rctx->src_sg = req->src; } else { rctx->src_sg = rctx->dst_sg; + src_nents = dst_nents - 1; } - ret = qce_dma_prep_sgs(&qce->dma, rctx->src_sg, rctx->src_nents, - rctx->dst_sg, rctx->dst_nents, + ret = qce_dma_prep_sgs(&qce->dma, rctx->src_sg, src_nents, + rctx->dst_sg, dst_nents, qce_skcipher_done, async_req); if (ret) goto error_unmap_src; |