From patchwork Thu Jan 5 00:22:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 639785 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 4255CC46467 for ; Thu, 5 Jan 2023 00:22:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231258AbjAEAW3 (ORCPT ); Wed, 4 Jan 2023 19:22:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60298 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234393AbjAEAW0 (ORCPT ); Wed, 4 Jan 2023 19:22:26 -0500 Received: from mail-lf1-x129.google.com (mail-lf1-x129.google.com [IPv6:2a00:1450:4864:20::129]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB2AE43A2E for ; Wed, 4 Jan 2023 16:22:25 -0800 (PST) Received: by mail-lf1-x129.google.com with SMTP id bf43so52858328lfb.6 for ; Wed, 04 Jan 2023 16:22:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=ce4nWtQTzmJz9V5Gg6kSD4rQYBwczLgo3Cm/X4Z1bnM=; b=fNPGDAg8iGnqEaZ91hIwN5lSd4fBxyM61qSNgJ1HV48KBU15MHJYKrvRQmKZZp0qbP B00F7ce53KCZb5itXQybmkB8fqQFzH5TzcTE768Sm6cQEUZ/evN1DwfVLHI94slk8AMZ +cW4qC53TU930mKHKuk40cZrBKUE+GHr07XreevoHBlTKjLLKH02QD1tZ5L4U6gh2XWM mNRJcaNc+I0eP7Ty7xr79MVg2NY/4bhy7cgOUEbyk1JWPBnN1Qorz5jIRLEr5MzkEyc5 Z/7hxUS6hwzUZ1CMOYvgPQ+ByBPI09sIxlCF0iwal7Ln6gZzA+YjkH2z0IPgsmJX4boD ujvw== 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 :subject:date:message-id:reply-to; bh=ce4nWtQTzmJz9V5Gg6kSD4rQYBwczLgo3Cm/X4Z1bnM=; b=bYWSavHhtp4zOmtOkvZOeRjkKkYMXVzOtLiCMl3rzIgtmWRILf/sjtj92YmmFJENad QDSRy55ku4kY3gGBf4QiAUy47gKgJqgQZSBW+vDV4Mh5yiYolBtBG2VIZ3l+nt2OC4pk ZuVxqFKKXXIxnQyByV7+YAGW4fN1DgSU4s5i8KO+ddRw+B3EzAxx8KKTjjRJpS/vCf4J ISgHOR2g0dyM0w44/KcKNtcWDsIYe1F2hm5V3QIRL4bxC+8QKBdnuX8KDbzF/LS3w7yY 8pY5cu87riBpnNBQJ4SpkaiQyFc8PW5/iAY75IaVRptk1nLVueDJcuaOqzONiZlS8Ly/ Dnaw== X-Gm-Message-State: AFqh2kogLX2v9n17POUlzar59I7UVTHFMo5dGSqEI4XsUTw0lUSETD5z gs5yOXVdlOfNZwDFsVrObhvznFGx5P9s0DHn X-Google-Smtp-Source: AMrXdXuo4m6fRH68Gv3wTjgQmGY0TETXWABcNyklOH66bt+kOw3MwvfrXmvu3U0+WeT7Rk3ZJl93wA== X-Received: by 2002:ac2:5fce:0:b0:4b5:850e:6f4a with SMTP id q14-20020ac25fce000000b004b5850e6f4amr15697082lfg.69.1672878144080; Wed, 04 Jan 2023 16:22:24 -0800 (PST) Received: from eriador.lan (dzccz6yyyyyyyyyyybcwt-3.rev.dnainternet.fi. [2001:14ba:a085:4d00::8a5]) by smtp.gmail.com with ESMTPSA id d18-20020ac241d2000000b004b4cbc942a3sm5291992lfi.127.2023.01.04.16.22.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Jan 2023 16:22:23 -0800 (PST) From: Dmitry Baryshkov To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Georgi Djakov Cc: linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 1/3] interconnect: qcom: osm-l3: fix icc_onecell_data allocation Date: Thu, 5 Jan 2023 02:22:19 +0200 Message-Id: <20230105002221.1416479-2-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230105002221.1416479-1-dmitry.baryshkov@linaro.org> References: <20230105002221.1416479-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This is a struct with a trailing zero-length array of icc_node pointers but it's allocated as if it were a single array of icc_nodes instead. Fortunately this overallocates memory rather then allocating less memory than required. Fix by replacing devm_kcalloc() with devm_kzalloc() and struct_size() macro. Fixes: 5bc9900addaf ("interconnect: qcom: Add OSM L3 interconnect provider support") Signed-off-by: Dmitry Baryshkov --- drivers/interconnect/qcom/osm-l3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/interconnect/qcom/osm-l3.c b/drivers/interconnect/qcom/osm-l3.c index 5fa171087425..1bc01ff6e02a 100644 --- a/drivers/interconnect/qcom/osm-l3.c +++ b/drivers/interconnect/qcom/osm-l3.c @@ -236,7 +236,7 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) qnodes = desc->nodes; num_nodes = desc->num_nodes; - data = devm_kcalloc(&pdev->dev, num_nodes, sizeof(*node), GFP_KERNEL); + data = devm_kzalloc(&pdev->dev, struct_size(data, nodes, num_nodes), GFP_KERNEL); if (!data) return -ENOMEM;