1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c
index db621db67f61..880f6ef0e18d 100644
--- a/drivers/isdn/gigaset/common.c
+++ b/drivers/isdn/gigaset/common.c
@@ -720,12 +720,11 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
 
         tasklet_init(&cs->event_tasklet, gigaset_handle_event,
                      (unsigned long) cs);
+        tty_port_init(&cs->port);
         cs->commands_pending = 0;
         cs->cur_at_seq = 0;
         cs->gotfwver = -1;
-        cs->open_count = 0;
         cs->dev = NULL;
-        cs->tty = NULL;
         cs->tty_dev = NULL;
         cs->cidmode = cidmode != 0;
         cs->tabnocid = gigaset_tab_nocid;
@@ -1051,8 +1050,6 @@ static struct cardstate *gigaset_get_cs_by_minor(unsigned minor)
 
 struct cardstate *gigaset_get_cs_by_tty(struct tty_struct *tty)
 {
-        if (tty->index < 0 || tty->index >= tty->driver->num)
-                return NULL;
         return gigaset_get_cs_by_minor(tty->index + tty->driver->minor_start);
 }