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clk: samsung: Switch to use kmemdup_array()

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

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240606161028.2986587-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
This commit is contained in:
Andy Shevchenko 2024-06-06 19:09:33 +03:00 committed by Krzysztof Kozlowski
parent b363a45913
commit 7666718892
2 changed files with 6 additions and 6 deletions
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4
drivers/clk/samsung/clk-cpu.c
View File

@ -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;

8
drivers/clk/samsung/clk-pll.c
View File

@ -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);