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-rw-r--r--arch/blackfin/include/asm/gpio.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/blackfin/include/asm/gpio.h b/arch/blackfin/include/asm/gpio.h
index d4a082ef75b..3c99ddc8df1 100644
--- a/arch/blackfin/include/asm/gpio.h
+++ b/arch/blackfin/include/asm/gpio.h
@@ -303,7 +303,10 @@ static inline void gpio_set_value(unsigned gpio, int value)
static inline int gpio_to_irq(unsigned gpio)
{
- return (gpio + GPIO_IRQ_BASE);
+ if (likely(gpio < MAX_BLACKFIN_GPIOS))
+ return gpio + GPIO_IRQ_BASE;
+
+ return -EINVAL;
}
static inline int irq_to_gpio(unsigned irq)