From: Axel Lin Date: Mon, 8 Apr 2013 03:43:02 +0000 (+0800) Subject: clk: mvebu: Fix valid value range checking for cpu_freq_select X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4cb24e68a5af427651b3529cd3fe382fb9ba1544;p=linux-beck.git clk: mvebu: Fix valid value range checking for cpu_freq_select cpu_freq_select is used as array subscript, thus the valid value range is 0 ... ARRAY_SIZE() - 1. Signed-off-by: Axel Lin Signed-off-by: Mike Turquette [mturquette@linaro.org: fixed up trivial merge issues] --- diff --git a/drivers/clk/mvebu/clk-core.c b/drivers/clk/mvebu/clk-core.c index 69056a7479e8..2628610c1929 100644 --- a/drivers/clk/mvebu/clk-core.c +++ b/drivers/clk/mvebu/clk-core.c @@ -156,7 +156,7 @@ static u32 __init armada_370_get_cpu_freq(void __iomem *sar) cpu_freq_select = ((readl(sar) >> SARL_A370_PCLK_FREQ_OPT) & SARL_A370_PCLK_FREQ_OPT_MASK); - if (cpu_freq_select > ARRAY_SIZE(armada_370_cpu_frequencies)) { + if (cpu_freq_select >= ARRAY_SIZE(armada_370_cpu_frequencies)) { pr_err("CPU freq select unsuported %d\n", cpu_freq_select); cpu_freq = 0; } else @@ -278,7 +278,7 @@ static u32 __init armada_xp_get_cpu_freq(void __iomem *sar) cpu_freq_select |= (((readl(sar+4) >> SARH_AXP_PCLK_FREQ_OPT) & SARH_AXP_PCLK_FREQ_OPT_MASK) << SARH_AXP_PCLK_FREQ_OPT_SHIFT); - if (cpu_freq_select > ARRAY_SIZE(armada_xp_cpu_frequencies)) { + if (cpu_freq_select >= ARRAY_SIZE(armada_xp_cpu_frequencies)) { pr_err("CPU freq select unsuported: %d\n", cpu_freq_select); cpu_freq = 0; } else