diff --git a/drivers/isdn/isdn_net.c b/drivers/isdn/isdn_net.c
index 0b2b4c16..586d7d1b 100644
--- a/drivers/isdn/isdn_net.c
+++ b/drivers/isdn/isdn_net.c
@@ -2907,17 +2907,8 @@ isdn_net_init(struct net_device *ndev)
 {
 	ushort max_hlhdr_len = 0;
 	isdn_net_local *lp = (isdn_net_local *) ndev->priv;
-	int drvidx,
-	 i;
+	int drvidx, i;
 
-	if (ndev == NULL) {
-		printk(KERN_WARNING "isdn_net_init: dev = NULL!\n");
-		return -ENODEV;
-	}
-	if (ndev->priv == NULL) {
-		printk(KERN_WARNING "isdn_net_init: dev->priv = NULL!\n");
-		return -ENODEV;
-	}
 	ether_setup(ndev);
 	lp->org_hhc = ndev->hard_header_cache;
 	lp->org_hcu = ndev->header_cache_update;
diff --git a/drivers/isdn/isdn_tty.c b/drivers/isdn/isdn_tty.c
index d38f59bf..e7586366 100644
--- a/drivers/isdn/isdn_tty.c
+++ b/drivers/isdn/isdn_tty.c
@@ -1182,8 +1182,6 @@ isdn_tty_write(struct tty_struct *tty, int from_user, const u_char * buf, int co
 
 	if (isdn_tty_paranoia_check(info, tty->device, "isdn_tty_write"))
 		return 0;
-	if (!tty)
-		return 0;
 	if (from_user)
 		down(&info->write_sem);
 	/* See isdn_tty_senddown() */