[PATCH] i4l fix DLE masking in isdn_tty_try_read

DLE masking was non-functional since the new tty handling.

Found by Peter Evertz <leo2@pec.homeip.net>
Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/isdn/i4l/isdn_tty.c

@@ -82,7 +82,7 @@ isdn_tty_try_read(modem_info * info, struct sk_buff *skb)
 						int l = skb->len;
 						unsigned char *dp = skb->data;
 						while (--l) {
-							if (*skb->data == DLE)
+							if (*dp == DLE)
 								tty_insert_flip_char(tty, DLE, 0);
 							tty_insert_flip_char(tty, *dp++, 0);
 						}