1 files changed, 16 insertions, 18 deletions

diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
index fced6acc74e..c359a91f734 100644
--- a/drivers/tty/synclink_gt.c
+++ b/drivers/tty/synclink_gt.c
@@ -674,8 +674,8 @@ static int open(struct tty_struct *tty, struct file *filp)
 
 	/* If port is closing, signal caller to try again */
 	if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
-		if (info->port.flags & ASYNC_CLOSING)
-			interruptible_sleep_on(&info->port.close_wait);
+		wait_event_interruptible_tty(tty, info->port.close_wait,
+					     !(info->port.flags & ASYNC_CLOSING));
 		retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
 			-EAGAIN : -ERESTARTSYS);
 		goto cleanup;
@@ -785,7 +785,7 @@ static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 	/* Handle transition to B0 status */
 	if (old_termios->c_cflag & CBAUD &&
 	    !(tty->termios.c_cflag & CBAUD)) {
-		info->signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
+		info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
 		spin_lock_irqsave(&info->lock,flags);
 		set_signals(info);
 		spin_unlock_irqrestore(&info->lock,flags);
@@ -1560,8 +1560,8 @@ static int hdlcdev_open(struct net_device *dev)
 		return rc;
 	}
 
-	/* assert DTR and RTS, apply hardware settings */
-	info->signals |= SerialSignal_RTS + SerialSignal_DTR;
+	/* assert RTS and DTR, apply hardware settings */
+	info->signals |= SerialSignal_RTS | SerialSignal_DTR;
 	program_hw(info);
 
 	/* enable network layer transmit */
@@ -1957,8 +1957,6 @@ static void bh_handler(struct work_struct *work)
 	struct slgt_info *info = container_of(work, struct slgt_info, task);
 	int action;
 
-	if (!info)
-		return;
 	info->bh_running = true;
 
 	while((action = bh_action(info))) {
@@ -2490,7 +2488,7 @@ static void shutdown(struct slgt_info *info)
 	slgt_irq_off(info, IRQ_ALL | IRQ_MASTER);
 
  	if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) {
- 		info->signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
+		info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
 		set_signals(info);
 	}
 
@@ -2550,12 +2548,12 @@ static void change_params(struct slgt_info *info)
 
 	cflag = info->port.tty->termios.c_cflag;
 
-	/* if B0 rate (hangup) specified then negate DTR and RTS */
-	/* otherwise assert DTR and RTS */
+	/* if B0 rate (hangup) specified then negate RTS and DTR */
+	/* otherwise assert RTS and DTR */
  	if (cflag & CBAUD)
-		info->signals |= SerialSignal_RTS + SerialSignal_DTR;
+		info->signals |= SerialSignal_RTS | SerialSignal_DTR;
 	else
-		info->signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
+		info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
 
 	/* byte size and parity */
 
@@ -3258,9 +3256,9 @@ static void dtr_rts(struct tty_port *port, int on)
 
 	spin_lock_irqsave(&info->lock,flags);
 	if (on)
-		info->signals |= SerialSignal_RTS + SerialSignal_DTR;
+		info->signals |= SerialSignal_RTS | SerialSignal_DTR;
 	else
-		info->signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
+		info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
  	set_signals(info);
 	spin_unlock_irqrestore(&info->lock,flags);
 }
@@ -3310,7 +3308,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	port->blocked_open++;
 
 	while (1) {
-		if ((tty->termios.c_cflag & CBAUD))
+		if (C_BAUD(tty) && test_bit(ASYNCB_INITIALIZED, &port->flags))
 			tty_port_raise_dtr_rts(port);
 
 		set_current_state(TASK_INTERRUPTIBLE);
@@ -4121,7 +4119,7 @@ static void reset_port(struct slgt_info *info)
 	tx_stop(info);
 	rx_stop(info);
 
-	info->signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
+	info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
 	set_signals(info);
 
 	slgt_irq_off(info, IRQ_ALL | IRQ_MASTER);
@@ -4548,8 +4546,8 @@ static void get_signals(struct slgt_info *info)
 {
 	unsigned short status = rd_reg16(info, SSR);
 
-	/* clear all serial signals except DTR and RTS */
-	info->signals &= SerialSignal_DTR + SerialSignal_RTS;
+	/* clear all serial signals except RTS and DTR */
+	info->signals &= SerialSignal_RTS | SerialSignal_DTR;
 
 	if (status & BIT3)
 		info->signals |= SerialSignal_DSR;