Fix a warning about an uninitialised variable.

The case that doesn't initialise it is impossible,
so just return with an error..

1 files changed, 2 insertions, 0 deletions

diff --git a/super1.c b/super1.c
index a480f21..42efc75 100644
--- a/super1.c
+++ b/super1.c
@@ -1203,6 +1203,8 @@ add_internal_bitmap1(struct supertype *st, void *sbv,
 			}
 		}
 		break;
+	default:
+		return 0;
 	}
 
 	if (chunk == UnSet && room > 128*2)