diff options
| -rw-r--r-- | drivers/usb/gadget/at91_udc.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index 1926d39e480..812c733ba8c 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -955,7 +955,10 @@ static int at91_vbus_session(struct usb_gadget *gadget, int is_active) // VDBG("vbus %s\n", is_active ? "on" : "off"); local_irq_save(flags); udc->vbus = (is_active != 0); - pullup(udc, is_active); + if (udc->driver) + pullup(udc, is_active); + else + pullup(udc, 0); local_irq_restore(flags); return 0; } @@ -1241,7 +1244,10 @@ static void handle_setup(struct at91_udc *udc, struct at91_ep *ep, u32 csr) #undef w_length /* pass request up to the gadget driver */ - status = udc->driver->setup(&udc->gadget, &pkt.r); + if (udc->driver) + status = udc->driver->setup(&udc->gadget, &pkt.r); + else + status = -ENODEV; if (status < 0) { stall: VDBG("req %02x.%02x protocol STALL; stat %d\n", |