1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index aaa8d2bce217..0bf72f943b00 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -467,7 +467,8 @@ static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data)
         /* From the GPIO notifying the over-current situation, find
          * out the corresponding port */
         at91_for_each_port(port) {
-                if (gpio_to_irq(pdata->overcurrent_pin[port]) == irq) {
+                if (gpio_is_valid(pdata->overcurrent_pin[port]) &&
+                                gpio_to_irq(pdata->overcurrent_pin[port]) == irq) {
                         gpio = pdata->overcurrent_pin[port];
                         break;
                 }