diff options
| -rw-r--r-- | drivers/usb/serial/xr_serial.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/serial/xr_serial.c b/drivers/usb/serial/xr_serial.c index bdb2df27b50b..7be6da6a5cf3 100644 --- a/drivers/usb/serial/xr_serial.c +++ b/drivers/usb/serial/xr_serial.c @@ -552,6 +552,9 @@ static int xr_probe(struct usb_serial *serial, const struct usb_device_id *id) /* But claim the control interface during data interface probe */ control_interface = usb_ifnum_to_if(usb_dev, 0); + if (!control_interface) + return -ENODEV; + ret = usb_driver_claim_interface(driver, control_interface, NULL); if (ret) { dev_err(&serial->interface->dev, "Failed to claim control interface\n"); |