From 7a74a4436b20980f8e19138e857bc7e39db5ad4b Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Mon, 10 Sep 2012 17:02:45 -0600 Subject: [PATCH] ARM: tegra: fix overflow in tegra20_pll_clk_round_rate() 32-bit math isn't enough when e.g. *prate=12000000, and sel->n=1000. Use 64-bit math to prevent this. Cc: Prashant Gaikwad Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/tegra20_clocks.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-tegra/tegra20_clocks.c b/arch/arm/mach-tegra/tegra20_clocks.c index b9124af..d9ce008 100644 --- a/arch/arm/mach-tegra/tegra20_clocks.c +++ b/arch/arm/mach-tegra/tegra20_clocks.c @@ -789,7 +789,7 @@ static long tegra20_pll_clk_round_rate(struct clk_hw *hw, unsigned long rate, struct clk_tegra *c = to_clk_tegra(hw); const struct clk_pll_freq_table *sel; unsigned long input_rate = *prate; - unsigned long output_rate = *prate; + u64 output_rate = *prate; int mul; int div; -- 2.7.4