--- drivers/isdn/gigaset/interface.c

+++ drivers/isdn/gigaset/interface.c

@@ -635,7 +635,6 @@ void gigaset_if_receive(struct cardstate

if ((tty = cs->tty) == NULL)

gig_dbg(DEBUG_ANY, "receive on closed device");

else {

- tty_buffer_request_room(tty, len);

tty_insert_flip_string(tty, buffer, len);

tty_flip_buffer_push(tty);

}