diff --git a/drivers/gpu/drm/tests/drm_cmdline_parser_test.c b/drivers/gpu/drm/tests/drm_cmdline_parser_test.c
index 59c8408c453c..1cfcb597b088 100644
--- a/drivers/gpu/drm/tests/drm_cmdline_parser_test.c
+++ b/drivers/gpu/drm/tests/drm_cmdline_parser_test.c
@@ -7,6 +7,7 @@
 #include <kunit/test.h>
 
 #include <drm/drm_connector.h>
+#include <drm/drm_kunit_helpers.h>
 #include <drm/drm_modes.h>
 
 static const struct drm_connector no_connector = {};
@@ -955,8 +956,15 @@ struct drm_cmdline_tv_option_test {
 static void drm_test_cmdline_tv_options(struct kunit *test)
 {
 	const struct drm_cmdline_tv_option_test *params = test->param_value;
-	const struct drm_display_mode *expected_mode = params->mode_fn(NULL);
+	struct drm_display_mode *expected_mode;
 	struct drm_cmdline_mode mode = { };
+	int ret;
+
+	expected_mode = params->mode_fn(NULL);
+	KUNIT_ASSERT_NOT_NULL(test, expected_mode);
+
+	ret = drm_kunit_add_mode_destroy_action(test, expected_mode);
+	KUNIT_ASSERT_EQ(test, ret, 0);
 
 	KUNIT_EXPECT_TRUE(test, drm_mode_parse_command_line_for_connector(params->cmdline,
 									  &no_connector, &mode));