diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index bb09ba3ca5c29bc282d19d928ed3f12fb8f0d5c1..2d9fa6e0a1b4a7320a44799a525013273f5cf9eb 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -321,7 +321,7 @@ static int tcf_mirred_device(const struct tc_action *a, struct net *net,
 	int ifindex = tcf_mirred_ifindex(a);
 
 	*mirred_dev = __dev_get_by_index(net, ifindex);
-	if (!mirred_dev)
+	if (!*mirred_dev)
 		return -EINVAL;
 	return 0;
 }