connection: Check gateway_hash value before call update_order()

When exit from ConnMan, __connman_connection_cleanup() is called
before __connman_service_cleanup() which then calls update_order().
__connman_connection_cleanup() sets gateway_hash as NULL, so update_order()
will access NULL hash and causes GLib-CRITICAL abort

diff --git a/src/connection.c b/src/connection.c
index 6b2dd2b..793bc8f 100644 (file)
--- a/src/connection.c
+++ b/src/connection.c
@@ -385,6 +385,9 @@ gboolean __connman_connection_update_gateway(void)
        struct gateway_data *active_gateway, *default_gateway;
        gboolean updated = FALSE;
 
+       if (gateway_hash == NULL)
+               return updated;
+
        update_order();
 
        active_gateway = find_active_gateway();