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: 13688748 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6D68E199399; Thu, 6 Jun 2024 16:10:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717690244; cv=none; b=hrheJrH4tdbMN4/8aThOnwAimBTd9DuuZLYkOiaraSQpVadz3FQLWhChTDmafKhXcO3ZecLy8VX/raTQOnbsbnV1TgD+T98dTIq6lc5ZbGYVQZg5Z1QtGkumlYJOIbTPJPpKvNjaNhOVSqqhxA3o56R54fOP1p97eTeXj1S4oRY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717690244; c=relaxed/simple; bh=3+qSRLVpcdMyUzcNy5jn6Wrz5bikHflvBafSsMgGFj4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bkein40dAFnzn3YJd2TGm2bX77kqSyTNQioPle0HzHQCmga+CfAREYg1pF5UKfyu0K4mVooSk/LlPEeg+0WojA1gW1XF1dncSSWGBa1113oRpF3SGrgHftz4DJOFf0Z5+JzkN+GqtoOFhfuKoSq/g3ZLZXMi6ZLzDzGov5rwGdY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=aIEJx+PB; arc=none smtp.client-ip=198.175.65.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="aIEJx+PB" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1717690242; x=1749226242; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=3+qSRLVpcdMyUzcNy5jn6Wrz5bikHflvBafSsMgGFj4=; b=aIEJx+PBIvh4wCbIWf+5RU/uxUGYoQxDHB8tN/Snu2P04uA9R+wifoEg OKCNtP0OVvqV4a1PemcfHQwtR8ah+SL5KxmkkiZt4QzxtqwDLfTy8QBDk 80RUkwB0OpFmvD48TbLp0c0qSvz+7R4wftjClWStMoDf551saFz2aCaYc qxFG5mXk1o8QKcAo4j3QKz4y4u620sa9ZVyglvgN1rydtBzYoQtVMxrVy tlG3Y0VUmbjBi19nH7nx9LGsvvM0nkCoaGpo0myfvPhckMZDWvjCBfbIT E+TPRP8HzfvqV6SgYE4JKXlBdfdRncnFykXBKEcmUe528+SG+CgNOYfSp g==; X-CSE-ConnectionGUID: w/PmKJ2lRZKIWJDukrHV5Q== X-CSE-MsgGUID: fYD5Ur7ySleyJ2pBZ6tojQ== X-IronPort-AV: E=McAfee;i="6600,9927,11095"; a="18164351" X-IronPort-AV: E=Sophos;i="6.08,219,1712646000"; d="scan'208";a="18164351" 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> Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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);