Push the locking down into a couple of functions that need it and remove bogus TIOCG/SSOFTCAR handling
Signed-off-by: Alan Cox <[EMAIL PROTECTED]> diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.25-rc2-mm1/drivers/char/riscom8.c linux-2.6.25-rc2-mm1/drivers/char/riscom8.c --- linux.vanilla-2.6.25-rc2-mm1/drivers/char/riscom8.c 2008-02-19 11:03:00.000000000 +0000 +++ linux-2.6.25-rc2-mm1/drivers/char/riscom8.c 2008-02-20 11:48:38.000000000 +0000 @@ -1385,7 +1385,7 @@ { struct riscom_port *port = (struct riscom_port *)tty->driver_data; void __user *argp = (void __user *)arg; - int retval; + int retval = 0; if (rc_paranoia_check(port, tty->name, "rc_ioctl")) return -ENODEV; @@ -1406,23 +1406,20 @@ tty_wait_until_sent(tty, 0); rc_send_break(port, arg ? arg*(HZ/10) : HZ/4); break; - case TIOCGSOFTCAR: - return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned __user *)argp); - case TIOCSSOFTCAR: - if (get_user(arg,(unsigned __user *) argp)) - return -EFAULT; - tty->termios->c_cflag = - ((tty->termios->c_cflag & ~CLOCAL) | - (arg ? CLOCAL : 0)); + case TIOCGSERIAL: + lock_kernel(); + retval = rc_get_serial_info(port, argp); + unlock_kernel(); break; - case TIOCGSERIAL: - return rc_get_serial_info(port, argp); case TIOCSSERIAL: - return rc_set_serial_info(port, argp); + lock_kernel(); + retval = rc_set_serial_info(port, argp); + unlock_kernel(); + break; default: - return -ENOIOCTLCMD; + retval = -ENOIOCTLCMD; } - return 0; + return retval; } static void rc_throttle(struct tty_struct * tty) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/