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Date: Fri, 08 Oct 2010 17:54:31 +0800 From: Axel Lin <axel.lin@...il.com> To: linux-kernel <linux-kernel@...r.kernel.org> Cc: Matthew Garrett <mjg@...hat.com>, Alek Du <alek.du@...el.com>, Alan Cox <alan@...ux.intel.com>, platform-driver-x86@...r.kernel.org Subject: [PATCH] intel_pmic_gpio: fix off-by-one value range checking In pmic_irq_type(), we use gpio as array index for trigger, thus the valid value range for gpio should be 0 .. NUM_GPIO - 1. Signed-off-by: Axel Lin <axel.lin@...il.com> --- drivers/platform/x86/intel_pmic_gpio.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/platform/x86/intel_pmic_gpio.c b/drivers/platform/x86/intel_pmic_gpio.c index c6e2a1d..f540ff9 100644 --- a/drivers/platform/x86/intel_pmic_gpio.c +++ b/drivers/platform/x86/intel_pmic_gpio.c @@ -197,7 +197,7 @@ static int pmic_irq_type(unsigned irq, unsigned type) u32 gpio = irq - pg->irq_base; unsigned long flags; - if (gpio > pg->chip.ngpio) + if (gpio >= pg->chip.ngpio) return -EINVAL; spin_lock_irqsave(&pg->irqtypes.lock, flags); -- 1.7.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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