Received-SPF: pass (google.com: domain of linux-kernel+bounces-204659-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3;
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Sam Protsenko <semen.protsenko@linaro.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
	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 <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Sylwester Nawrocki <s.nawrocki@samsung.com>,
	Chanwoo Choi <cw00.choi@samsung.com>,
	Alim Akhtar <alim.akhtar@samsung.com>,
	Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
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>
In-Reply-To: <20240606161028.2986587-1-andriy.shevchenko@linux.intel.com>
References: <20240606161028.2986587-1-andriy.shevchenko@linux.intel.com>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

Let the kememdup_array() take care about multiplication and possible
overflows.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 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);
-- 
2.43.0.rc1.1336.g36b5255a03ac