diff options
Diffstat (limited to 'drivers/char/stallion.c')
| -rw-r--r-- | drivers/char/stallion.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c index 874aaa08e95..d17be10c5d2 100644 --- a/drivers/char/stallion.c +++ b/drivers/char/stallion.c @@ -875,6 +875,7 @@ static void stl_waituntilsent(struct tty_struct *tty, int timeout) timeout = HZ; tend = jiffies + timeout; + lock_kernel(); while (stl_datastate(portp)) { if (signal_pending(current)) break; @@ -882,6 +883,7 @@ static void stl_waituntilsent(struct tty_struct *tty, int timeout) if (time_after_eq(jiffies, tend)) break; } + unlock_kernel(); } /*****************************************************************************/ @@ -1273,18 +1275,9 @@ static int stl_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd rc = 0; + lock_kernel(); + switch (cmd) { - case TIOCGSOFTCAR: - rc = put_user(((tty->termios->c_cflag & CLOCAL) ? 1 : 0), - (unsigned __user *) argp); - break; - case TIOCSSOFTCAR: - if (get_user(ival, (unsigned int __user *) arg)) - return -EFAULT; - tty->termios->c_cflag = - (tty->termios->c_cflag & ~CLOCAL) | - (ival ? CLOCAL : 0); - break; case TIOCGSERIAL: rc = stl_getserial(portp, argp); break; @@ -1308,7 +1301,7 @@ static int stl_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd rc = -ENOIOCTLCMD; break; } - + unlock_kernel(); return rc; } |