diff --git a/include/kunit/test.h b/include/kunit/test.h
index da5312e0dfa5..31d549578f8e 100644
--- a/include/kunit/test.h
+++ b/include/kunit/test.h
@@ -400,11 +400,10 @@ struct kunit_suite_set kunit_merge_suite_sets(struct kunit_suite_set init_suite_
 const void *kunit_array_gen_params(struct kunit *test, const void *prev, char *desc);
 
 #if IS_BUILTIN(CONFIG_KUNIT)
-int kunit_run_all_tests(void);
+void kunit_run_all_tests(void);
 #else
-static inline int kunit_run_all_tests(void)
+static inline void kunit_run_all_tests(void)
 {
-	return 0;
 }
 #endif /* IS_BUILTIN(CONFIG_KUNIT) */
 
diff --git a/lib/kunit/executor.c b/lib/kunit/executor.c
index b0f8a41d61d3..c798a02470d8 100644
--- a/lib/kunit/executor.c
+++ b/lib/kunit/executor.c
@@ -371,7 +371,7 @@ static void kunit_handle_shutdown(void)
 
 }
 
-int kunit_run_all_tests(void)
+void kunit_run_all_tests(void)
 {
 	struct kunit_suite_set suite_set = {NULL, NULL};
 	struct kunit_suite_set filtered_suite_set = {NULL, NULL};
@@ -382,7 +382,7 @@ int kunit_run_all_tests(void)
 		__kunit_suites_start, __kunit_suites_end,
 	};
 	size_t init_num_suites = init_suite_set.end - init_suite_set.start;
-	int err = 0;
+	int err;
 
 	if (init_num_suites > 0) {
 		suite_set = kunit_merge_suite_sets(init_suite_set, normal_suite_set);
@@ -432,7 +432,6 @@ int kunit_run_all_tests(void)
 
 out:
 	kunit_handle_shutdown();
-	return err;
 }
 
 #if IS_BUILTIN(CONFIG_KUNIT_TEST)