fix: check tags is null

src/adapter/driver/driver.c

@@ -171,6 +171,10 @@ static void update_im(neu_adapter_t *adapter, const char *group,
     }
 
     UT_array *tags = neu_adapter_driver_get_ptag(driver, group, tag);
+    if (tags == NULL) {
+        return;
+    }
+
     neu_driver_cache_update_change(driver->cache, group, tag, global_timestamp,
                                    value, metas, n_meta, true);
     driver->adapter.cb_funs.update_metric(&driver->adapter,