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Commit e67504c5 authored by Al Viro's avatar Al Viro
Browse files

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: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 864e880d

drivers/isdn/i4l/isdn_tty.c

+0 −19
Original line number Diff line number Diff line
@@ -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);