isdn_tty: TCSBRK{,P} won't reach ->ioctl()

kill the long-dead code - it's been unreachable since 2008.  Redundant, as
well - generic will do exact same thing, since ->break_ctl is NULL here...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index b730037..1b2239c 100644 (file)
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -1412,31 +1412,12 @@ static int
 isdn_tty_ioctl(struct tty_struct *tty, uint cmd, ulong arg)
 {
        modem_info *info = (modem_info *) tty->driver_data;
-       int retval;
 
        if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_ioctl"))
                return -ENODEV;
        if (tty_io_error(tty))
                return -EIO;
        switch (cmd) {
-       case TCSBRK:   /* SVID version: non-zero arg --> no break */
-#ifdef ISDN_DEBUG_MODEM_IOCTL
-               printk(KERN_DEBUG "ttyI%d ioctl TCSBRK\n", info->line);
-#endif
-               retval = tty_check_change(tty);
-               if (retval)
-                       return retval;
-               tty_wait_until_sent(tty, 0);
-               return 0;
-       case TCSBRKP:  /* support for POSIX tcsendbreak() */
-#ifdef ISDN_DEBUG_MODEM_IOCTL
-               printk(KERN_DEBUG "ttyI%d ioctl TCSBRKP\n", info->line);
-#endif
-               retval = tty_check_change(tty);
-               if (retval)
-                       return retval;
-               tty_wait_until_sent(tty, 0);
-               return 0;
        case TIOCSERGETLSR:     /* Get line status register */
 #ifdef ISDN_DEBUG_MODEM_IOCTL
                printk(KERN_DEBUG "ttyI%d ioctl TIOCSERGETLSR\n", info->line);