diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 0a3c9665e0154..33530d8cb81d8 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -1646,9 +1646,7 @@ static struct gsm_dlci *gsm_dlci_alloc(struct gsm_mux *gsm, int addr)
 	}
 
 	skb_queue_head_init(&dlci->skb_list);
-	init_timer(&dlci->t1);
-	dlci->t1.function = gsm_dlci_t1;
-	dlci->t1.data = (unsigned long)dlci;
+	setup_timer(&dlci->t1, gsm_dlci_t1, (unsigned long)dlci);
 	tty_port_init(&dlci->port);
 	dlci->port.ops = &gsm_port_ops;
 	dlci->gsm = gsm;