commit df9ee0b: [Minor] Do not unref what's not been refed

[Vsevolod Stakhov]

Author: Vsevolod Stakhov
Date: 2021-09-13 16:28:09 +0100
URL: https://github.com/rspamd/rspamd/commit/df9ee0b1caf1f5617fbf90cf1e4ff155757b5866 (HEAD -> master)

[Minor] Do not unref what's not been refed

---
 src/libserver/fuzzy_backend/fuzzy_backend_redis.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libserver/fuzzy_backend/fuzzy_backend_redis.c b/src/libserver/fuzzy_backend/fuzzy_backend_redis.c
index 0de487534..18e049926 100644
--- a/src/libserver/fuzzy_backend/fuzzy_backend_redis.c
+++ b/src/libserver/fuzzy_backend/fuzzy_backend_redis.c
@@ -172,7 +172,7 @@ rspamd_fuzzy_backend_redis_dtor (struct rspamd_fuzzy_backend_redis *backend)
 {
 	lua_State *L = backend->L;
 
-	if (backend->conf_ref) {
+	if (backend->conf_ref != -1) {
 		luaL_unref (L, LUA_REGISTRYINDEX, backend->conf_ref);
 	}