diff --git a/net/mac802154/iface.c b/net/mac802154/iface.c
index 3a67d35d46722b9b9179be7df547f8351b3e46ca..e3d77b07c0e4a4924be35b803dcaf6981ec5f789 100644
--- a/net/mac802154/iface.c
+++ b/net/mac802154/iface.c
@@ -147,7 +147,6 @@ static int mac802154_slave_open(struct net_device *dev)
 
 	if (!local->open_count) {
 		res = drv_start(local);
-		WARN_ON(res);
 		if (res)
 			goto err;
 	}