[PATCH] commands: saveenv: exit on invalid option

[Enrico Jorns]

Saveenv should not perform any actions if an invalid parameter was
given.

Signed-off-by: Enrico Jorns <ejo at pengutronix.de>
---
 commands/saveenv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/commands/saveenv.c b/commands/saveenv.c
index 6f210b7..bc1202f 100644
--- a/commands/saveenv.c
+++ b/commands/saveenv.c
@@ -35,6 +35,8 @@ static int do_saveenv(int argc, char *argv[])
 		case 'z':
 			envfs_flags |= ENVFS_FLAGS_FORCE_BUILT_IN;
 			break;
+		default:
+			return COMMAND_ERROR_USAGE;
 		}
 	}
 
-- 
2.8.1