diff --git a/mm/damon/core.c b/mm/damon/core.c
index 42fea05ecde4..fd5be73f699f 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -914,7 +914,7 @@ static bool __damos_filter_out(struct damon_ctx *ctx, struct damon_target *t,
 		matched = true;
 		break;
 	default:
-		break;
+		return false;
 	}
 
 	return matched == filter->matching;