The device path protocol doesn't get closed at FvSimpleFilesystem driver stop() when it's opened at start() with BY_DRIVER mode. We change it to open DevicePath with GET_PROTOCOL mode as FV2 protocol with BY_DRIVER is enough. Cc: Chao Zhang <chao.b.zhang@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Feng Tian <feng.tian@intel.com> Reviewed-by: Chao Zhang <chao.b.zhang@intel.com>