1 files changed, 2 insertions, 5 deletions

diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index 89a28872c636..3831abdbc66f 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -1590,12 +1590,9 @@ static int
 isdn_tty_open(struct tty_struct *tty, struct file *filp)
 {
         modem_info *info;
-        int retval, line;
+        int retval;
 
-        line = tty->index;
-        if (line < 0 || line >= ISDN_MAX_CHANNELS)
-                return -ENODEV;
-        info = &dev->mdm.info[line];
+        info = &dev->mdm.info[tty->index];
         if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_open"))
                 return -ENODEV;
         if (!try_module_get(info->owner)) {