TTY: 68328serial, use tty from tty_port
And refcount that properly.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/68328serial.c b/drivers/tty/serial/68328serial.c
index fde573b..77e10bb 100644
--- a/drivers/tty/serial/68328serial.c
+++ b/drivers/tty/serial/68328serial.c
@@ -114,7 +114,6 @@
int port;
int irq;
int type; /* UART type */
- struct tty_struct *tty;
int custom_divisor;
int x_char; /* xon/xoff character */
int line;
@@ -356,7 +355,7 @@
irqreturn_t rs_interrupt(int irq, void *dev_id)
{
struct m68k_serial *info = dev_id;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = tty_port_tty_get(&info->tport);
m68328_uart *uart;
unsigned short rx;
unsigned short tx;
@@ -374,6 +373,8 @@
#else
receive_chars(info, tty, rx);
#endif
+ tty_kref_put(tty);
+
return IRQ_HANDLED;
}
@@ -1062,7 +1063,7 @@
tty_ldisc_flush(tty);
tty->closing = 0;
- info->tty = NULL;
+ tty_port_tty_set(&info->tport, NULL);
#warning "This is not and has never been valid so fix it"
#if 0
if (tty->ldisc.num != ldiscs[N_TTY].num) {
@@ -1098,7 +1099,7 @@
shutdown(info, tty);
info->tport.count = 0;
info->tport.flags &= ~ASYNC_NORMAL_ACTIVE;
- info->tty = NULL;
+ tty_port_tty_set(&info->tport, NULL);
wake_up_interruptible(&info->tport.open_wait);
}
@@ -1210,7 +1211,7 @@
info->tport.count++;
tty->driver_data = info;
- info->tty = tty;
+ tty_port_tty_set(&info->tport, tty);
/*
* Start up serial port
@@ -1289,7 +1290,6 @@
tty_port_init(&info->tport);
info->magic = SERIAL_MAGIC;
info->port = (int) &uart_addr[i];
- info->tty = NULL;
info->irq = uart_irqs[i];
info->custom_divisor = 16;
info->x_char = 0;