diff options
Diffstat (limited to 'drivers/crypto/hisilicon/sgl.c')
| -rw-r--r-- | drivers/crypto/hisilicon/sgl.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/crypto/hisilicon/sgl.c b/drivers/crypto/hisilicon/sgl.c index 0beca257c20b..c974f95cd126 100644 --- a/drivers/crypto/hisilicon/sgl.c +++ b/drivers/crypto/hisilicon/sgl.c @@ -161,9 +161,6 @@ static struct hisi_acc_hw_sgl *acc_get_sgl(struct hisi_acc_sgl_pool *pool, struct mem_block *block; u32 block_index, offset; - if (!pool || !hw_sgl_dma || index >= pool->count) - return ERR_PTR(-EINVAL); - block = pool->mem_block; block_index = index / pool->sgl_num_per_block; offset = index % pool->sgl_num_per_block; @@ -228,9 +225,9 @@ hisi_acc_sg_buf_map_to_hw_sgl(struct device *dev, dma_addr_t curr_sgl_dma = 0; struct acc_hw_sge *curr_hw_sge; struct scatterlist *sg; - int sg_n; + int sg_n, ret; - if (!dev || !sgl || !pool || !hw_sgl_dma) + if (!dev || !sgl || !pool || !hw_sgl_dma || index >= pool->count) return ERR_PTR(-EINVAL); sg_n = sg_nents(sgl); @@ -243,14 +240,15 @@ hisi_acc_sg_buf_map_to_hw_sgl(struct device *dev, if (sg_n_mapped > pool->sge_nr) { dev_err(dev, "the number of entries in input scatterlist is bigger than SGL pool setting.\n"); - return ERR_PTR(-EINVAL); + ret = -EINVAL; + goto err_unmap; } curr_hw_sgl = acc_get_sgl(pool, index, &curr_sgl_dma); if (IS_ERR(curr_hw_sgl)) { dev_err(dev, "Get SGL error!\n"); - dma_unmap_sg(dev, sgl, sg_n, DMA_BIDIRECTIONAL); - return ERR_PTR(-ENOMEM); + ret = -ENOMEM; + goto err_unmap; } curr_hw_sgl->entry_length_in_sgl = cpu_to_le16(pool->sge_nr); curr_hw_sge = curr_hw_sgl->sge_entries; @@ -265,6 +263,11 @@ hisi_acc_sg_buf_map_to_hw_sgl(struct device *dev, *hw_sgl_dma = curr_sgl_dma; return curr_hw_sgl; + +err_unmap: + dma_unmap_sg(dev, sgl, sg_n, DMA_BIDIRECTIONAL); + + return ERR_PTR(ret); } EXPORT_SYMBOL_GPL(hisi_acc_sg_buf_map_to_hw_sgl); |