PKT_SCHED: Return ENOENT if action module is unavailable

Return ENOENT if action module is unavailable
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>

net/sched/act_api.c

@@ -308,6 +308,7 @@ struct tc_action *tcf_action_init_1(struct rtattr *rta, struct rtattr *est,
 			goto err_mod;
 		}
 #endif
+		*err = -ENOENT;
 		goto err_out;
 	}