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path: root/drivers/isdn/gigaset/interface.c
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Diffstat (limited to 'drivers/isdn/gigaset/interface.c')
-rw-r--r--drivers/isdn/gigaset/interface.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index 08e4c4eea14d..74fd234956c8 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -625,7 +625,14 @@ void gigaset_if_init(struct cardstate *cs)
return;
tasklet_init(&cs->if_wake_tasklet, &if_wake, (unsigned long) cs);
- tty_register_device(drv->tty, cs->minor_index, NULL);
+ cs->class = tty_register_device(drv->tty, cs->minor_index, NULL);
+
+ if (!IS_ERR(cs->class))
+ class_set_devdata(cs->class, cs);
+ else {
+ warn("could not register device to the tty subsystem");
+ cs->class = NULL;
+ }
}
void gigaset_if_free(struct cardstate *cs)
@@ -638,6 +645,7 @@ void gigaset_if_free(struct cardstate *cs)
tasklet_disable(&cs->if_wake_tasklet);
tasklet_kill(&cs->if_wake_tasklet);
+ cs->class = NULL;
tty_unregister_device(drv->tty, cs->minor_index);
}