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path: root/drivers/usb/host/ohci-at91.c
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Diffstat (limited to 'drivers/usb/host/ohci-at91.c')
-rw-r--r--drivers/usb/host/ohci-at91.c3
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;
}