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path: root/drivers/serial/mcfserial.c
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Diffstat (limited to 'drivers/serial/mcfserial.c')
-rw-r--r--drivers/serial/mcfserial.c18
1 files changed, 4 insertions, 14 deletions
diff --git a/drivers/serial/mcfserial.c b/drivers/serial/mcfserial.c
index ddd3aa50d4a..aafa1704e1a 100644
--- a/drivers/serial/mcfserial.c
+++ b/drivers/serial/mcfserial.c
@@ -1072,18 +1072,6 @@ static int mcfrs_ioctl(struct tty_struct *tty, struct file * file,
tty_wait_until_sent(tty, 0);
send_break(info, arg ? arg*(HZ/10) : HZ/4);
return 0;
- case TIOCGSOFTCAR:
- error = put_user(C_CLOCAL(tty) ? 1 : 0,
- (unsigned long *) arg);
- if (error)
- return error;
- return 0;
- case TIOCSSOFTCAR:
- get_user(arg, (unsigned long *) arg);
- tty->termios->c_cflag =
- ((tty->termios->c_cflag & ~CLOCAL) |
- (arg ? CLOCAL : 0));
- return 0;
case TIOCGSERIAL:
if (access_ok(VERIFY_WRITE, (void *) arg,
sizeof(struct serial_struct)))
@@ -1222,8 +1210,7 @@ static void mcfrs_close(struct tty_struct *tty, struct file * filp)
} else
#endif
shutdown(info);
- if (tty->driver->flush_buffer)
- tty->driver->flush_buffer(tty);
+ mcfrs_flush_buffer(tty);
tty_ldisc_flush(tty);
tty->closing = 0;
@@ -1276,6 +1263,8 @@ mcfrs_wait_until_sent(struct tty_struct *tty, int timeout)
* Note: we have to use pretty tight timings here to satisfy
* the NIST-PCTS.
*/
+ lock_kernel();
+
fifo_time = (MCF5272_FIFO_SIZE * HZ * 10) / info->baud;
char_time = fifo_time / 5;
if (char_time == 0)
@@ -1312,6 +1301,7 @@ mcfrs_wait_until_sent(struct tty_struct *tty, int timeout)
if (timeout && time_after(jiffies, orig_jiffies + timeout))
break;
}
+ unlock_kernel();
#else
/*
* For the other coldfire models, assume all data has been sent