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>
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 @@
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);