[PATCH v1 2/4] clk: rockchip: Switch to use kmemdup_array()

[Andy Shevchenko]

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

Signed-off-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
---
 drivers/clk/rockchip/clk-cpu.c | 5 ++---
 drivers/clk/rockchip/clk-pll.c | 8 ++++----
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/clk/rockchip/clk-cpu.c b/drivers/clk/rockchip/clk-cpu.c
index 6ea7fba9f9e5..398a226ad34e 100644
--- a/drivers/clk/rockchip/clk-cpu.c
+++ b/drivers/clk/rockchip/clk-cpu.c
@@ -369,9 +369,8 @@ struct clk *rockchip_clk_register_cpuclk(const char *name,
 
 	if (nrates > 0) {
 		cpuclk->rate_count = nrates;
-		cpuclk->rate_table = kmemdup(rates,
-					     sizeof(*rates) * nrates,
-					     GFP_KERNEL);
+		cpuclk->rate_table = kmemdup_array(rates, nrates, sizeof(*rates),
+						   GFP_KERNEL);
 		if (!cpuclk->rate_table) {
 			ret = -ENOMEM;
 			goto unregister_notifier;
diff --git a/drivers/clk/rockchip/clk-pll.c b/drivers/clk/rockchip/clk-pll.c
index 2d42eb628926..606ce5458f54 100644
--- a/drivers/clk/rockchip/clk-pll.c
+++ b/drivers/clk/rockchip/clk-pll.c
@@ -1136,10 +1136,10 @@ struct clk *rockchip_clk_register_pll(struct rockchip_clk_provider *ctx,
 			len++;
 
 		pll->rate_count = len;
-		pll->rate_table = kmemdup(rate_table,
-					pll->rate_count *
-					sizeof(struct rockchip_pll_rate_table),
-					GFP_KERNEL);
+		pll->rate_table = kmemdup_array(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__, name);
-- 
2.43.0.rc1.1336.g36b5255a03ac