diff options
| -rw-r--r-- | drivers/gpio/gpio-omap.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index c3598d143aa9..0d30c7acf0c7 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -427,6 +427,9 @@ static int gpio_irq_type(struct irq_data *d, unsigned type) int retval; unsigned long flags; + if (WARN_ON(!bank->mod_usage)) + return -EINVAL; + #ifdef CONFIG_ARCH_OMAP1 if (d->irq > IH_MPUIO_BASE) gpio = OMAP_MPUIO(d->irq - IH_MPUIO_BASE); |