Node not found: drivers/staging/linux+v3.12.2/drivers/staging/btmtk_usb/drivers/staging/linux+v3.12.2/drivers/staging/btmtk_usb/drivers/staging/linux+v3.12.2/drivers/staging/btmtk_usb/drivers/staging/linux+v3.12.2/drivers/staging/btmtk_usb/ (v3.12.1)