til: optionally finalize in til_module_setup()

This was assuming non-NULL res_setup which would assert in
til_module_setup_finalize() which doesn't expect a NULL
res_setup since that's its entire purpose.

It's not a bug that was actually triggered by any callers (yet)

1 files changed, 4 insertions, 1 deletions

diff --git a/src/til.c b/src/til.c
index fdcce68..c5c5eae 100644
--- a/src/til.c
+++ b/src/til.c
@@ -512,7 +512,10 @@ int til_module_setup(const til_settings_t *settings, til_setting_t **res_setting
 	if (module->setup)
 		return module->setup(settings, res_setting, res_desc, res_setup);
 
-	return til_module_setup_finalize(module, settings, res_setup);
+	if (res_setup)
+		return til_module_setup_finalize(module, settings, res_setup);
+
+	return 0;
 }