serial167: prepare to push BKL down into drivers

Kill the softcar handlers again, wrap the ioctl handler in the BKL

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/char/serial167.c b/drivers/char/serial167.c
index df8cd0ca97ebcc5d8728ab36ffcdeabcd899c4f3..f62fb9360c3f0a53463ac1e49502b995c7d69733 100644 (file)
--- a/drivers/char/serial167.c
+++ b/drivers/char/serial167.c
@@ -1539,6 +1539,8 @@ cy_ioctl(struct tty_struct *tty, struct file *file,
        printk("cy_ioctl %s, cmd = %x arg = %lx\n", tty->name, cmd, arg);       /* */
 #endif
 
+       lock_kernel();
+
        switch (cmd) {
        case CYGETMON:
                ret_val = get_mon_info(info, argp);
@@ -1584,18 +1586,6 @@ cy_ioctl(struct tty_struct *tty, struct file *file,
                break;
 
 /* The following commands are incompletely implemented!!! */
-       case TIOCGSOFTCAR:
-               ret_val =
-                   put_user(C_CLOCAL(tty) ? 1 : 0,
-                            (unsigned long __user *)argp);
-               break;
-       case TIOCSSOFTCAR:
-               ret_val = get_user(val, (unsigned long __user *)argp);
-               if (ret_val)
-                       break;
-               tty->termios->c_cflag =
-                   ((tty->termios->c_cflag & ~CLOCAL) | (val ? CLOCAL : 0));
-               break;
        case TIOCGSERIAL:
                ret_val = get_serial_info(info, argp);
                break;
@@ -1605,6 +1595,7 @@ cy_ioctl(struct tty_struct *tty, struct file *file,
        default:
                ret_val = -ENOIOCTLCMD;
        }
+       unlock_kernel();
 
 #ifdef SERIAL_DEBUG_OTHER
        printk("cy_ioctl done\n");