1 files changed, 3 insertions, 12 deletions

diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c
index 874aaa08e956..983244ab1362 100644
--- a/drivers/char/stallion.c
+++ b/drivers/char/stallion.c
@@ -1273,18 +1273,9 @@ 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 +1299,7 @@ static int stl_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd
                 rc = -ENOIOCTLCMD;
                 break;
         }
-
+        unlock_kernel();
         return rc;
 }