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| author | Axel Lin <axel.lin@gmail.com> | 2010-10-08 11:54:31 +0200 |
|---|---|---|
| committer | Matthew Garrett <mjg@redhat.com> | 2010-10-21 16:10:47 +0200 |
| commit | 4119617919c243755946699808ffd0f4befa62c7 (patch) | |
| tree | a3072ec2107810b3dac2e9da0e8c366bfe946e43 | |
| parent | IBM Real-Time "SMI Free" mode driver -v7 (diff) | |
| download | linux-4119617919c243755946699808ffd0f4befa62c7.tar.xz linux-4119617919c243755946699808ffd0f4befa62c7.zip | |
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@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
| -rw-r--r-- | 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 c6e2a1d4fadc..f540ff96c53f 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); |