diff options
Diffstat (limited to 'drivers/crypto/caam/caamalg_qi.c')
| -rw-r--r-- | drivers/crypto/caam/caamalg_qi.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/drivers/crypto/caam/caamalg_qi.c b/drivers/crypto/caam/caamalg_qi.c index c0d55310aade..a15ce9213310 100644 --- a/drivers/crypto/caam/caamalg_qi.c +++ b/drivers/crypto/caam/caamalg_qi.c @@ -782,7 +782,7 @@ static struct caam_drv_ctx *get_drv_ctx(struct caam_ctx *ctx, cpu = smp_processor_id(); drv_ctx = caam_drv_ctx_init(ctx->qidev, &cpu, desc); - if (likely(!IS_ERR_OR_NULL(drv_ctx))) + if (!IS_ERR_OR_NULL(drv_ctx)) drv_ctx->op_type = type; ctx->drv_ctx[type] = drv_ctx; @@ -802,7 +802,8 @@ static void caam_unmap(struct device *dev, struct scatterlist *src, if (dst != src) { if (src_nents) dma_unmap_sg(dev, src, src_nents, DMA_TO_DEVICE); - dma_unmap_sg(dev, dst, dst_nents, DMA_FROM_DEVICE); + if (dst_nents) + dma_unmap_sg(dev, dst, dst_nents, DMA_FROM_DEVICE); } else { dma_unmap_sg(dev, src, src_nents, DMA_BIDIRECTIONAL); } @@ -892,7 +893,7 @@ static struct aead_edesc *aead_edesc_alloc(struct aead_request *req, struct caam_drv_ctx *drv_ctx; drv_ctx = get_drv_ctx(ctx, encrypt ? ENCRYPT : DECRYPT); - if (unlikely(IS_ERR_OR_NULL(drv_ctx))) + if (IS_ERR_OR_NULL(drv_ctx)) return (struct aead_edesc *)drv_ctx; /* allocate space for base edesc and hw desc commands, link tables */ @@ -955,13 +956,19 @@ static struct aead_edesc *aead_edesc_alloc(struct aead_request *req, mapped_src_nents = 0; } - mapped_dst_nents = dma_map_sg(qidev, req->dst, dst_nents, - DMA_FROM_DEVICE); - if (unlikely(!mapped_dst_nents)) { - dev_err(qidev, "unable to map destination\n"); - dma_unmap_sg(qidev, req->src, src_nents, DMA_TO_DEVICE); - qi_cache_free(edesc); - return ERR_PTR(-ENOMEM); + if (dst_nents) { + mapped_dst_nents = dma_map_sg(qidev, req->dst, + dst_nents, + DMA_FROM_DEVICE); + if (unlikely(!mapped_dst_nents)) { + dev_err(qidev, "unable to map destination\n"); + dma_unmap_sg(qidev, req->src, src_nents, + DMA_TO_DEVICE); + qi_cache_free(edesc); + return ERR_PTR(-ENOMEM); + } + } else { + mapped_dst_nents = 0; } } @@ -1184,7 +1191,7 @@ static struct skcipher_edesc *skcipher_edesc_alloc(struct skcipher_request *req, struct caam_drv_ctx *drv_ctx; drv_ctx = get_drv_ctx(ctx, encrypt ? ENCRYPT : DECRYPT); - if (unlikely(IS_ERR_OR_NULL(drv_ctx))) + if (IS_ERR_OR_NULL(drv_ctx)) return (struct skcipher_edesc *)drv_ctx; src_nents = sg_nents_for_len(req->src, req->cryptlen); |