From patchwork Thu Jun 6 16:09:33 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 13688736 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 41525C27C54 for ; Thu, 6 Jun 2024 16:11:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=HvgPxII0QHoFTjyH0rr86JHFkSp6FQTQDQK8vL98sFc=; b=nP2qWw2uhh+NVd QITE3/D2FtlDBdb/3B0N3ml4O9bZ9CN0c8nkbu8hM5Extouu4gS1T1nVjJ7NON+N1zKWly3AC2l+I M4fziXJgiu1aJ0AoYY7xsVSFFsKMAvvGBl+WSWu2x+IW4yOoPYqQPYLEnw9lvo8xG+1+442Gz4TYZ NUm/QJ7LmR3mgcN1nBHFwMNN70P5H0DYLQ49CpRs3mbnmDmSSDMysrhMzJzL5Zd2vVXtNX2xvYjDv Bd59Ybtgt3GTDTztqcVMt5GF3d+N38cfw+e6cIkxWPmrLR9+RSwRkWNnmaeiwF5HUZSuXOYiyExL1 RJU4j2N3gUZooYaHoecQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sFFhU-0000000ARHq-0SvQ; Thu, 06 Jun 2024 16:10:52 +0000 Received: from mgamail.intel.com ([198.175.65.15]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sFFhK-0000000AR9o-3QC6; Thu, 06 Jun 2024 16:10:44 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1717690243; x=1749226243; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=3+qSRLVpcdMyUzcNy5jn6Wrz5bikHflvBafSsMgGFj4=; b=XbX52wChUHaiCM7SA3s8XqMzu3KX57Fdn2ez3VOsLodvGgqvMw1FnCVh 4P/e1Fn34ff3mzQdNyfKblZrAObkOfyVMKCiy+byfE64or+WSZPPNx2T7 ahohULxD4ioiB4xgB1mShTrzgJDFJusWg4wf+QcLJQbq/1RSJ2BaajLT7 qAOUXlWtU2mczKaMrplWU6gHSh448HTiQPTKGRud+//ZSITOuUxvDTRQa noO3RIH8aouFMMgFA9Io0/MlyDJN63Kggkg1bKdobfguhWkQtyUf//OiC 1lfKzgJqIEACPdZD2EeclhHNhTqVnnOuxMz7OTpfmkzA6NGI9oVk4wkzc w==; X-CSE-ConnectionGUID: Pe+36RZVTwuLF81nhgwwPQ== X-CSE-MsgGUID: bjMA6q7NTH+2/TeRilhi+Q== X-IronPort-AV: E=McAfee;i="6600,9927,11095"; a="18164349" X-IronPort-AV: E=Sophos;i="6.08,219,1712646000"; d="scan'208";a="18164349" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jun 2024 09:10:35 -0700 X-CSE-ConnectionGUID: 6PYiMqvtSKGU11AqT+idoA== X-CSE-MsgGUID: nCNrCDJvSL+zXHFUY5b1DQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,219,1712646000"; d="scan'208";a="37949163" Received: from black.fi.intel.com ([10.237.72.28]) by orviesa010.jf.intel.com with ESMTP; 06 Jun 2024 09:10:32 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 73307339; Thu, 06 Jun 2024 19:10:30 +0300 (EEST) From: Andy Shevchenko To: Andy Shevchenko , Sam Protsenko , Krzysztof Kozlowski , linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-samsung-soc@vger.kernel.org Cc: Michael Turquette , Stephen Boyd , Heiko Stuebner , Krzysztof Kozlowski , Sylwester Nawrocki , Chanwoo Choi , Alim Akhtar , Nobuhiro Iwamatsu Subject: [PATCH v1 3/4] clk: samsung: Switch to use kmemdup_array() Date: Thu, 6 Jun 2024 19:09:33 +0300 Message-ID: <20240606161028.2986587-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1336.g36b5255a03ac In-Reply-To: <20240606161028.2986587-1-andriy.shevchenko@linux.intel.com> References: <20240606161028.2986587-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240606_091042_998054_BD074CF2 X-CRM114-Status: GOOD ( 13.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Let the kememdup_array() take care about multiplication and possible overflows. Signed-off-by: Andy Shevchenko --- drivers/clk/samsung/clk-cpu.c | 4 ++-- drivers/clk/samsung/clk-pll.c | 8 ++++---- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/clk/samsung/clk-cpu.c b/drivers/clk/samsung/clk-cpu.c index fbf4c4208e06..dfa149e648aa 100644 --- a/drivers/clk/samsung/clk-cpu.c +++ b/drivers/clk/samsung/clk-cpu.c @@ -689,8 +689,8 @@ static int __init exynos_register_cpu_clock(struct samsung_clk_provider *ctx, for (num_cfgs = 0; clk_data->cfg[num_cfgs].prate != 0; ) num_cfgs++; - cpuclk->cfg = kmemdup(clk_data->cfg, sizeof(*clk_data->cfg) * num_cfgs, - GFP_KERNEL); + cpuclk->cfg = kmemdup_array(clk_data->cfg, num_cfgs, sizeof(*cpuclk->cfg), + GFP_KERNEL); if (!cpuclk->cfg) { ret = -ENOMEM; goto unregister_clk_nb; diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c index 4bbdf5e91650..4be879ab917e 100644 --- a/drivers/clk/samsung/clk-pll.c +++ b/drivers/clk/samsung/clk-pll.c @@ -1286,10 +1286,10 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx, len++; pll->rate_count = len; - pll->rate_table = kmemdup(pll_clk->rate_table, - pll->rate_count * - sizeof(struct samsung_pll_rate_table), - GFP_KERNEL); + pll->rate_table = kmemdup_array(pll_clk->rate_table, + pll->rate_count, + sizeof(*pll->rate_table), + GFP_KERNEL); WARN(!pll->rate_table, "%s: could not allocate rate table for %s\n", __func__, pll_clk->name);