diff options
| -rw-r--r-- | drivers/char/epca.c | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/drivers/char/epca.c b/drivers/char/epca.c index ffd747c5dff0..9a682851283e 100644 --- a/drivers/char/epca.c +++ b/drivers/char/epca.c @@ -2206,21 +2206,6 @@ static int pc_ioctl(struct tty_struct *tty, struct file * file, tty_wait_until_sent(tty, 0); digi_send_break(ch, arg ? arg*(HZ/10) : HZ/4); return 0; - case TIOCGSOFTCAR: - if (put_user(C_CLOCAL(tty)?1:0, (unsigned long __user *)arg)) - return -EFAULT; - return 0; - case TIOCSSOFTCAR: - { - unsigned int value; - - if (get_user(value, (unsigned __user *)argp)) - return -EFAULT; - tty->termios->c_cflag = - ((tty->termios->c_cflag & ~CLOCAL) | - (value ? CLOCAL : 0)); - return 0; - } case TIOCMODG: mflag = pc_tiocmget(tty, file); if (put_user(mflag, (unsigned long __user *)argp)) @@ -2253,6 +2238,7 @@ static int pc_ioctl(struct tty_struct *tty, struct file * file, break; case DIGI_SETAW: case DIGI_SETAF: + lock_kernel(); if (cmd == DIGI_SETAW) { /* Setup an event to indicate when the transmit buffer empties */ spin_lock_irqsave(&epca_lock, flags); @@ -2264,6 +2250,7 @@ static int pc_ioctl(struct tty_struct *tty, struct file * file, if (tty->ldisc.flush_buffer) tty->ldisc.flush_buffer(tty); } + unlock_kernel(); /* Fall Thru */ case DIGI_SETA: if (copy_from_user(&ch->digiext, argp, sizeof(digi_t))) |