From patchwork Fri Aug 19 06:07:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinpu Wang X-Patchwork-Id: 598928 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 033B6C32771 for ; Fri, 19 Aug 2022 06:09:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346655AbiHSGJD (ORCPT ); Fri, 19 Aug 2022 02:09:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39210 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346537AbiHSGIe (ORCPT ); Fri, 19 Aug 2022 02:08:34 -0400 Received: from mail-ed1-x529.google.com (mail-ed1-x529.google.com [IPv6:2a00:1450:4864:20::529]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EA36F27CF5 for ; Thu, 18 Aug 2022 23:08:22 -0700 (PDT) Received: by mail-ed1-x529.google.com with SMTP id w3so4457060edc.2 for ; Thu, 18 Aug 2022 23:08:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ionos.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc; bh=MhAvXvgOuGSOVU+0SPcQuNTLcHtqNw2MpFIs8bOelUY=; b=f1tj4JkACZwBuG1Wd+y0k1B4j6b/vQPV1oCFLCsOqpOzuvijbn46KCd4KAXf/gvHeT XnpTd7mcqNqk5iwk1SY78oocOtcdS+Dq6qelGImkzEHazqVx1Y1P+k7knppAWoAoFsl5 B5sK2IXanUQbA5/cLSBhvAO397/VqKN6N1xRxmopNPjByZqJxc/zUhyAko0OLnMZtJb+ Mu5E9sw6kXxGG9G9C6si7nPick00J5XPuXyCaSuzub0JlHbPgwoVJyEOeXJ63uqBMJJ+ /yrQud7vigK7bG19ieiUVjWP5H+YBFHkYoVdPD1O0xNPcGOJ0cu8KcZpNdA4Dqi9WG/Y aXkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc; bh=MhAvXvgOuGSOVU+0SPcQuNTLcHtqNw2MpFIs8bOelUY=; b=aawbFKr8TR7dlp7YwDVvOdsnYVA4Ls9IkuG2e8zeuL9KWPW2i/WItb7HG6PkAnfyhA 4ZW/OvgzydRHxACWTi2sHSvLsudzWQICNhwnA/5JYtOzlc43bNPEmuQCZX42Q9rYR+9p a8Bwvi4cV84CU7NgbTpkQrbHeTgJcxzgqeH33Sgz28Gkki+pII/p0++BNUmOLzvdjzqr MxsGrVkV4nfWUWDfgPZkdE/lkGzUwzQYOSd+Wpvr4J9afkR2slxTxYUqjNyZKY1cYB+U 7mHpsC0YTfZtVM5SldR/t358zsgk2NDKi/sx1JsCGwmnOGolyASZ+GnbuAwjcrMxH2EJ 5v0g== X-Gm-Message-State: ACgBeo2jmWGrkD7Zb6WEs9fGJy4BhJruGMzt/UBj6WcGcOesCtFLx7fn MCm6jR5UZfFeH/MqOIVdhBoFdg== X-Google-Smtp-Source: AA6agR45x+III0utWJMPQr/7+FfJG2j+q5Z9JwzMPorUnxjE8X9vtPiF+PHoDO1FO0i+zG5jcgjANA== X-Received: by 2002:a05:6402:27c6:b0:43d:6fab:146e with SMTP id c6-20020a05640227c600b0043d6fab146emr4785049ede.376.1660889301413; Thu, 18 Aug 2022 23:08:21 -0700 (PDT) Received: from lb02065.fritz.box ([2001:9e8:143b:fd00:5207:8c7f:747a:b80d]) by smtp.gmail.com with ESMTPSA id y14-20020a1709063a8e00b0073a644ef803sm1809660ejd.101.2022.08.18.23.08.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Aug 2022 23:08:20 -0700 (PDT) From: Jack Wang To: linux-kernel@vger.kernel.org Cc: Corentin Labbe , Herbert Xu , "David S. Miller" , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Dan Carpenter , Minghao Chi , Peng Wu , Alexey Khoroshilov , linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev Subject: [PATCH v1 11/19] crypto: allwinner: Fix dma_map_sg error check Date: Fri, 19 Aug 2022 08:07:53 +0200 Message-Id: <20220819060801.10443-12-jinpu.wang@ionos.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220819060801.10443-1-jinpu.wang@ionos.com> References: <20220819060801.10443-1-jinpu.wang@ionos.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org dma_map_sg return 0 on error. Cc: Corentin Labbe Cc: Herbert Xu Cc: "David S. Miller" Cc: Chen-Yu Tsai Cc: Jernej Skrabec Cc: Samuel Holland Cc: Dan Carpenter Cc: Minghao Chi Cc: Peng Wu Cc: Alexey Khoroshilov Cc: linux-crypto@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-sunxi@lists.linux.dev Cc: linux-kernel@vger.kernel.org Signed-off-by: Jack Wang --- drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c | 6 +++--- drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c | 2 +- drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c | 4 ++-- drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c | 2 +- 4 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c index 74b4e910a38d..be7f46faef7e 100644 --- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c +++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c @@ -208,7 +208,7 @@ static int sun8i_ce_cipher_prepare(struct crypto_engine *engine, void *async_req if (areq->src == areq->dst) { nr_sgs = dma_map_sg(ce->dev, areq->src, ns, DMA_BIDIRECTIONAL); - if (nr_sgs <= 0 || nr_sgs > MAX_SG) { + if (!nr_sgs || nr_sgs > MAX_SG) { dev_err(ce->dev, "Invalid sg number %d\n", nr_sgs); err = -EINVAL; goto theend_iv; @@ -216,13 +216,13 @@ static int sun8i_ce_cipher_prepare(struct crypto_engine *engine, void *async_req nr_sgd = nr_sgs; } else { nr_sgs = dma_map_sg(ce->dev, areq->src, ns, DMA_TO_DEVICE); - if (nr_sgs <= 0 || nr_sgs > MAX_SG) { + if (!nr_sgs || nr_sgs > MAX_SG) { dev_err(ce->dev, "Invalid sg number %d\n", nr_sgs); err = -EINVAL; goto theend_iv; } nr_sgd = dma_map_sg(ce->dev, areq->dst, nd, DMA_FROM_DEVICE); - if (nr_sgd <= 0 || nr_sgd > MAX_SG) { + if (!nr_sgd || nr_sgd > MAX_SG) { dev_err(ce->dev, "Invalid sg number %d\n", nr_sgd); err = -EINVAL; goto theend_sgs; diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c index 8b5b9b9d04c3..0e6843ec197f 100644 --- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c +++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c @@ -389,7 +389,7 @@ int sun8i_ce_hash_run(struct crypto_engine *engine, void *breq) cet->t_asym_ctl = 0; nr_sgs = dma_map_sg(ce->dev, areq->src, ns, DMA_TO_DEVICE); - if (nr_sgs <= 0 || nr_sgs > MAX_SG) { + if (!nr_sgs || nr_sgs > MAX_SG) { dev_err(ce->dev, "Invalid sg number %d\n", nr_sgs); err = -EINVAL; goto theend; diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c index 910d6751644c..fdcc98cdecaa 100644 --- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c +++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c @@ -232,13 +232,13 @@ static int sun8i_ss_cipher(struct skcipher_request *areq) nr_sgd = nr_sgs; } else { nr_sgs = dma_map_sg(ss->dev, areq->src, nsgs, DMA_TO_DEVICE); - if (nr_sgs <= 0 || nr_sgs > 8) { + if (!nr_sgs || nr_sgs > 8) { dev_err(ss->dev, "Invalid sg number %d\n", nr_sgs); err = -EINVAL; goto theend_iv; } nr_sgd = dma_map_sg(ss->dev, areq->dst, nsgd, DMA_FROM_DEVICE); - if (nr_sgd <= 0 || nr_sgd > 8) { + if (!nr_sgd || nr_sgd > 8) { dev_err(ss->dev, "Invalid sg number %d\n", nr_sgd); err = -EINVAL; goto theend_sgs; diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c index 36a82b22953c..fcb8c41cc957 100644 --- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c +++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c @@ -527,7 +527,7 @@ int sun8i_ss_hash_run(struct crypto_engine *engine, void *breq) rctx->method = ss->variant->alg_hash[algt->ss_algo_id]; nr_sgs = dma_map_sg(ss->dev, areq->src, sg_nents(areq->src), DMA_TO_DEVICE); - if (nr_sgs <= 0 || nr_sgs > MAX_SG) { + if (!nr_sgs || nr_sgs > MAX_SG) { dev_err(ss->dev, "Invalid sg number %d\n", nr_sgs); err = -EINVAL; goto theend;