step: fill out a static data

lib/dbi/ogs-mongoc.h

@@ -28,6 +28,7 @@
 extern "C" {
 #endif /* __cplusplus */
 
+
 typedef struct ogs_mongoc_s {
     bool initialized;
     const char *name;

lib/dbi/session.c

@@ -19,6 +19,11 @@
 
 #include "ogs-dbi.h"
 
+/* how does this function work?!
+ *
+ *
+ */
+
 #ifdef OGS_DBI_WITH_MONGODB
 int ogs_dbi_session_data(char *supi, ogs_s_nssai_t *s_nssai, char *dnn,
         ogs_session_data_t *session_data)

src/pcrf/pcrf-context.c

@@ -292,7 +292,7 @@ int pcrf_db_qos_data(
     ogs_free(supi);
     ogs_thread_mutex_unlock(&self.db_lock);
 
-    return rv;
+    return 0;
 }
 
 void pcrf_sess_set_ipv4(const void *key, uint8_t *sid)