1 files changed, 0 insertions, 1 deletions

diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index 9cb6e5021adb..133eb18e65cc 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -1917,7 +1917,6 @@ isdn_tty_modem_init(void)
                 info->owner = THIS_MODULE;
 #endif
                 spin_lock_init(&info->readlock);
-                init_MUTEX(&info->write_sem);
                 sprintf(info->last_cause, "0000");
                 sprintf(info->last_num, "none");
                 info->last_dir = 0;