go: plugin_proxy: error on plugin initialization errors

Author: stoksc

src/flb_input_thread.c

@@ -620,9 +620,11 @@ int flb_input_thread_instance_init(struct flb_config *config, struct flb_input_i
     ret = input_thread_instance_get_status(ins);
     if (ret == -1) {
         flb_plg_error(ins, "unexpected error loading plugin instance");
+        return -1;
     }
     else if (ret == FLB_FALSE) {
         flb_plg_error(ins, "could not initialize threaded plugin instance");
+        return -1;
     }
     else if (ret == FLB_TRUE) {
         flb_plg_info(ins, "thread instance initialized");

src/proxy/go/go.c

@@ -224,7 +224,6 @@ int proxy_go_input_init(struct flb_plugin_proxy *proxy)
     if (ret <= 0) {
         flb_error("[go proxy]: plugin '%s' failed to initialize",
                   plugin->name);
-        flb_free(plugin);
         return -1;
     }