1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index ba3a46b78b7..95a9fec38e8 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -223,6 +223,9 @@ static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int
         if (port < 0 || port >= 2)
                 return;
 
+        if (pdata->vbus_pin[port] <= 0)
+                return;
+
         gpio_set_value(pdata->vbus_pin[port], !pdata->vbus_pin_inverted ^ enable);
 }
 
@@ -231,6 +234,9 @@ static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port)
         if (port < 0 || port >= 2)
                 return -EINVAL;
 
+        if (pdata->vbus_pin[port] <= 0)
+                return -EINVAL;
+
         return gpio_get_value(pdata->vbus_pin[port]) ^ !pdata->vbus_pin_inverted;
 }