diff options
Diffstat (limited to 'drivers/usb/dwc3/ep0.c')
| -rw-r--r-- | drivers/usb/dwc3/ep0.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 8b668ef46f7f..2f9e45eed228 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -292,6 +292,9 @@ static struct dwc3_ep *dwc3_wIndex_to_dep(struct dwc3 *dwc, __le16 wIndex_le) epnum |= 1; dep = dwc->eps[epnum]; + if (dep == NULL) + return NULL; + if (dep->flags & DWC3_EP_ENABLED) return dep; @@ -594,11 +597,13 @@ static int dwc3_ep0_set_address(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) static int dwc3_ep0_delegate_req(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) { - int ret; + int ret = -EINVAL; - spin_unlock(&dwc->lock); - ret = dwc->gadget_driver->setup(dwc->gadget, ctrl); - spin_lock(&dwc->lock); + if (dwc->async_callbacks) { + spin_unlock(&dwc->lock); + ret = dwc->gadget_driver->setup(dwc->gadget, ctrl); + spin_lock(&dwc->lock); + } return ret; } |