diff --git a/mm/damon/tests/core-kunit.h b/mm/damon/tests/core-kunit.h
index eddf3a048458..9b8c20a50ad5 100644
--- a/mm/damon/tests/core-kunit.h
+++ b/mm/damon/tests/core-kunit.h
@@ -1008,6 +1008,8 @@ static void damos_test_commit_dests_for(struct kunit *test,
 	skip = false;
 
 	KUNIT_EXPECT_EQ(test, dst.nr_dests, src_nr_dests);
+	if (dst.nr_dests != src_nr_dests)
+		goto out;
 	for (i = 0; i < dst.nr_dests; i++) {
 		KUNIT_EXPECT_EQ(test, dst.node_id_arr[i], src_node_id_arr[i]);
 		KUNIT_EXPECT_EQ(test, dst.weight_arr[i], src_weight_arr[i]);