diff options
Diffstat (limited to 'drivers/crypto/hisilicon/sgl.c')
| -rw-r--r-- | drivers/crypto/hisilicon/sgl.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/crypto/hisilicon/sgl.c b/drivers/crypto/hisilicon/sgl.c index 568acd0aee3f..c974f95cd126 100644 --- a/drivers/crypto/hisilicon/sgl.c +++ b/drivers/crypto/hisilicon/sgl.c @@ -225,7 +225,7 @@ 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 || index >= pool->count) return ERR_PTR(-EINVAL); @@ -240,14 +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; @@ -262,6 +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); |