From patchwork Fri Mar 5 06:35:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hui Tang X-Patchwork-Id: 393684 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D23BFC433DB for ; Fri, 5 Mar 2021 06:37:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A68E564F52 for ; Fri, 5 Mar 2021 06:37:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229497AbhCEGha (ORCPT ); Fri, 5 Mar 2021 01:37:30 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:13436 "EHLO szxga06-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229486AbhCEGha (ORCPT ); Fri, 5 Mar 2021 01:37:30 -0500 Received: from DGGEMS402-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4DsJ0N3MS4zjVjv; Fri, 5 Mar 2021 14:36:04 +0800 (CST) Received: from localhost.localdomain (10.67.165.24) by DGGEMS402-HUB.china.huawei.com (10.3.19.202) with Microsoft SMTP Server id 14.3.498.0; Fri, 5 Mar 2021 14:37:18 +0800 From: Hui Tang To: , , , , CC: , , , Subject: [PATCH v2 1/2] crypto: qat - fix unmap invalid dma address Date: Fri, 5 Mar 2021 14:35:01 +0800 Message-ID: <1614926102-44388-2-git-send-email-tanghui20@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1614926102-44388-1-git-send-email-tanghui20@huawei.com> References: <1614926102-44388-1-git-send-email-tanghui20@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.165.24] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org 'dma_mapping_error' return a negative value if 'dma_addr' is equal to 'DMA_MAPPING_ERROR' not zero, so fix initialization of 'dma_addr'. Signed-off-by: Hui Tang --- drivers/crypto/qat/qat_common/qat_algs.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/qat/qat_common/qat_algs.c b/drivers/crypto/qat/qat_common/qat_algs.c index ff78c73..ea1c689 100644 --- a/drivers/crypto/qat/qat_common/qat_algs.c +++ b/drivers/crypto/qat/qat_common/qat_algs.c @@ -719,7 +719,7 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst, struct qat_alg_buf_list *bufl; struct qat_alg_buf_list *buflout = NULL; dma_addr_t blp; - dma_addr_t bloutp = 0; + dma_addr_t bloutp; struct scatterlist *sg; size_t sz_out, sz = struct_size(bufl, bufers, n + 1); @@ -731,6 +731,9 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst, if (unlikely(!bufl)) return -ENOMEM; + for_each_sg(sgl, sg, n, i) + bufl->bufers[i].addr = DMA_MAPPING_ERROR; + blp = dma_map_single(dev, bufl, sz, DMA_TO_DEVICE); if (unlikely(dma_mapping_error(dev, blp))) goto err_in; @@ -764,10 +767,14 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst, dev_to_node(&GET_DEV(inst->accel_dev))); if (unlikely(!buflout)) goto err_in; + + bufers = buflout->bufers; + for_each_sg(sglout, sg, n, i) + bufers[i].addr = DMA_MAPPING_ERROR; + bloutp = dma_map_single(dev, buflout, sz_out, DMA_TO_DEVICE); if (unlikely(dma_mapping_error(dev, bloutp))) goto err_out; - bufers = buflout->bufers; for_each_sg(sglout, sg, n, i) { int y = sg_nctr;