In uadk v1, the library will alloc a ctx_buffer used for storing stream information. On hisilicon platform, the hardware will output some data to this buffer. So the ctx_buffer should be map to PA/IOVA. But here the lz77_zstd forgot to unmap this buffer on error branch. What's more, if the user use the wd_bmm ops, the unmap is a void function. Signed-off-by: Yang Shen <shenyang39@huawei.com> --- v1/drv/hisi_zip_udrv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/v1/drv/hisi_zip_udrv.c b/v1/drv/hisi_zip_udrv.c index f820b7f..470acb9 100644 --- a/v1/drv/hisi_zip_udrv.c +++ b/v1/drv/hisi_zip_udrv.c @@ -512,6 +512,9 @@ static int fill_zip_addr_lz77_zstd(void *ssqe, unmap_phy_seq: drv_iova_unmap(q, zstd_out->literal, (void *)phy_lit, zstd_out->lit_sz); unmap_phy_lit: + if (msg->stream_mode == WCRYPTO_COMP_STATEFUL) + drv_iova_unmap(q, msg->ctx_buf, (void *)addr.ctxbuf_addr - CTX_BUFFER_OFFSET, + MAX_CTX_RSV_SIZE); drv_iova_unmap(q, msg->src, (void *)addr.source_addr, msg->in_size); return -WD_ENOMEM; } -- 2.33.0