code: func (prober *flexVolumeProber) createPluginDir() error {
  	if _, err := prober.fs.Stat(prober.pluginDir); os.IsNotExist(err) {
  		klog.Warningf("Flexvolume plugin directory at %s does not exist. Recreating.", prober.pluginDir)
  		err := prober.fs.MkdirAll(prober.pluginDir, 0755)
  		if err != nil {
  			return fmt.Errorf("Error (re-)creating driver directory: %s", err)
  		}
  	}
  
  	return nil
  }
docs: // Creates the plugin directory, if it doesn't already exist.