From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f47.google.com (mail-ej1-f47.google.com [209.85.218.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3F98C1FA7 for ; Thu, 25 Aug 2022 07:24:28 +0000 (UTC) Received: by mail-ej1-f47.google.com with SMTP id j21so32408859ejs.0 for ; Thu, 25 Aug 2022 00:24:27 -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=0aI67loF6W941kI2a1qaBc4yuTiPkE24GFlkzf9zIho=; b=QPl4SOPBQw60gvX7h0UoMpZmM2OSEprGYploWhAzSt6mBzL2z9vEent7QQXZ3+1xmy HqF4UYz6+6fAECcM+STV+da9h/RiSSJAemL48vFgbR4BH9tbivSC34p+TwKS3B+w6SRq CsrZEyIDEgfFtpms63VWVs6r5+rjlLzeaPR8oVi2+TqIxZOQvCMNcddtRwAKlTbngzRl NVwWylsVqD8JgKPKNX2jO8LO44xYoAnredLcWMyvv3g/NzlsBpvR7dkXfQHuq64Q8OrU b/J/TxqeepLi7DQou6bSb2Ik7rViFBzCbIgqqngTw6KfCFJr6d7fbIlEZdqFy66dRDMR 4AHg== 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=0aI67loF6W941kI2a1qaBc4yuTiPkE24GFlkzf9zIho=; b=h2CVwvOHzp6vKWLazOJA6d2YQGbzFiPa78JVWoG/AOVfEPCS9/1oMGQRkhwYzCRkyX +QPTF3JW1oF+t9e3L33ts41gE5MtCERz1Yx7Kzsaw00RWR40wBMfFG1PP2vfAGViSybV uce6cvk9G+jdUWlyTRB6vy2I4EbQ3DVk1Gy2kLxgwYx9E9MWM/y5+dXrS5K/QTs54dUL OZKgQErUFD28brS/D4FkhPiuY8I4gFjYlEdpggwjlBQuo1sBoBGlHn/sk6v6EcUEDMOb 9FR1TwWkQReSvdx0+f0JAfk+8Vd6U4doTykfMPOznIBrQWlkasvI0xbtKmmdUANIMRqJ WuRw== X-Gm-Message-State: ACgBeo1phkx7wnON+aFp7OHGaQQHVXWPx5yV51Im2zxw+mmesK85DiVo gFTcaRaXNk5SrOY/u0ZZ93tCFg== X-Google-Smtp-Source: AA6agR7xq8lmYOHdm2trDOmp773MnIQKIRGV6RNdLdjKo1apjifY0yvtQQQxkInQ28TGgxYGLbf78w== X-Received: by 2002:a17:907:b17:b0:72a:edb8:7529 with SMTP id h23-20020a1709070b1700b0072aedb87529mr1529339ejl.749.1661412266376; Thu, 25 Aug 2022 00:24:26 -0700 (PDT) Received: from lb02065.fritz.box ([2001:9e8:142d:a900:eab:b5b1:a064:1d0d]) by smtp.gmail.com with ESMTPSA id ky12-20020a170907778c00b0073ce4abf093sm2032281ejc.214.2022.08.25.00.24.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Aug 2022 00:24:26 -0700 (PDT) From: Jack Wang To: herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org Cc: Corentin Labbe , "David S. Miller" , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Dan Carpenter , Minghao Chi , Peng Wu , Alexey Khoroshilov , linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH 5/6] crypto: allwinner: Fix dma_map_sg error check Date: Thu, 25 Aug 2022 09:24:20 +0200 Message-Id: <20220825072421.29020-6-jinpu.wang@ionos.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220825072421.29020-1-jinpu.wang@ionos.com> References: <20220825072421.29020-1-jinpu.wang@ionos.com> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 Fixes: 06f751b61329 ("crypto: allwinner - Add sun8i-ce Crypto Engine") Fixes: d9b45418a917 ("crypto: sun8i-ss - support hash algorithms") 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; -- 2.34.1