[IPV4/IPV6]; Missing schedule_net() in inet{,6}_del_protocol.

net/ipv4/protocol.c

@@ -91,6 +91,7 @@ int inet_del_protocol(struct inet_protocol *prot, unsigned char protocol)
 	}
 	spin_unlock_bh(&inet_proto_lock);
 
+	synchronize_net();
 
 	return ret;
 }

net/ipv6/protocol.c

@@ -80,5 +80,7 @@ int inet6_del_protocol(struct inet6_protocol *prot, unsigned char protocol)
 
 	spin_unlock_bh(&inet6_proto_lock);
 
+	synchronize_net();
+
 	return ret;
 }