diff options
Diffstat (limited to 'drivers/tty/serial/pmac_zilog.c')
| -rw-r--r-- | drivers/tty/serial/pmac_zilog.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c index 333c8d012b0..73a3f295e7c 100644 --- a/drivers/tty/serial/pmac_zilog.c +++ b/drivers/tty/serial/pmac_zilog.c @@ -229,6 +229,7 @@ static void pmz_interrupt_control(struct uart_pmac_port *uap, int enable) static struct tty_struct *pmz_receive_chars(struct uart_pmac_port *uap) { + struct tty_port *port; struct tty_struct *tty = NULL; unsigned char ch, r1, drop, error, flag; int loops = 0; @@ -239,7 +240,8 @@ static struct tty_struct *pmz_receive_chars(struct uart_pmac_port *uap) (void)read_zsdata(uap); return NULL; } - tty = uap->port.state->port.tty; + port = &uap->port.state->port; + tty = port->tty; /* TOCTOU above */ while (1) { error = 0; @@ -309,10 +311,10 @@ static struct tty_struct *pmz_receive_chars(struct uart_pmac_port *uap) if (uap->port.ignore_status_mask == 0xff || (r1 & uap->port.ignore_status_mask) == 0) { - tty_insert_flip_char(tty, ch, flag); + tty_insert_flip_char(port, ch, flag); } if (r1 & Rx_OVR) - tty_insert_flip_char(tty, 0, TTY_OVERRUN); + tty_insert_flip_char(port, 0, TTY_OVERRUN); next_char: /* We can get stuck in an infinite loop getting char 0 when the * line is in a wrong HW state, we break that here. |