tty: move the termios object into the tty

This will let us sort out a whole pile of tty related races. The
alternative would be to keep points and refcount the termios objects.
However
1. They are tiny anyway
2. Many devices don't use the stored copies
3. We can remove a pty special case

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 18 insertions, 18 deletions

diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
index 593d40ad0a6..bdeeb3133f6 100644
--- a/drivers/tty/synclink.c
+++ b/drivers/tty/synclink.c
@@ -1840,22 +1840,22 @@ static void shutdown(struct mgsl_struct * info)
 	usc_DisableInterrupts(info,RECEIVE_DATA + RECEIVE_STATUS +
 		TRANSMIT_DATA + TRANSMIT_STATUS + IO_PIN + MISC );
 	usc_DisableDmaInterrupts(info,DICR_MASTER + DICR_TRANSMIT + DICR_RECEIVE);
-	
+
 	/* Disable DMAEN (Port 7, Bit 14) */
 	/* This disconnects the DMA request signal from the ISA bus */
 	/* on the ISA adapter. This has no effect for the PCI adapter */
 	usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT15) | BIT14));
-	
+
 	/* Disable INTEN (Port 6, Bit12) */
 	/* This disconnects the IRQ request signal to the ISA bus */
 	/* on the ISA adapter. This has no effect for the PCI adapter */
 	usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) | BIT12));
-	
- 	if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
+
+	if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) {
  		info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
 		usc_set_serial_signals(info);
 	}
-	
+
 	spin_unlock_irqrestore(&info->irq_spinlock,flags);
 
 	mgsl_release_resources(info);	
@@ -1895,7 +1895,7 @@ static void mgsl_program_hw(struct mgsl_struct *info)
 	usc_EnableInterrupts(info, IO_PIN);
 	usc_get_serial_signals(info);
 		
-	if (info->netcount || info->port.tty->termios->c_cflag & CREAD)
+	if (info->netcount || info->port.tty->termios.c_cflag & CREAD)
 		usc_start_receiver(info);
 		
 	spin_unlock_irqrestore(&info->irq_spinlock,flags);
@@ -1908,14 +1908,14 @@ static void mgsl_change_params(struct mgsl_struct *info)
 	unsigned cflag;
 	int bits_per_char;
 
-	if (!info->port.tty || !info->port.tty->termios)
+	if (!info->port.tty)
 		return;
 		
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgsl_change_params(%s)\n",
 			 __FILE__,__LINE__, info->device_name );
 			 
-	cflag = info->port.tty->termios->c_cflag;
+	cflag = info->port.tty->termios.c_cflag;
 
 	/* if B0 rate (hangup) specified then negate DTR and RTS */
 	/* otherwise assert DTR and RTS */
@@ -2367,8 +2367,8 @@ static void mgsl_throttle(struct tty_struct * tty)
 	
 	if (I_IXOFF(tty))
 		mgsl_send_xchar(tty, STOP_CHAR(tty));
- 
- 	if (tty->termios->c_cflag & CRTSCTS) {
+
+	if (tty->termios.c_cflag & CRTSCTS) {
 		spin_lock_irqsave(&info->irq_spinlock,flags);
 		info->serial_signals &= ~SerialSignal_RTS;
 	 	usc_set_serial_signals(info);
@@ -2401,8 +2401,8 @@ static void mgsl_unthrottle(struct tty_struct * tty)
 		else
 			mgsl_send_xchar(tty, START_CHAR(tty));
 	}
-	
- 	if (tty->termios->c_cflag & CRTSCTS) {
+
+	if (tty->termios.c_cflag & CRTSCTS) {
 		spin_lock_irqsave(&info->irq_spinlock,flags);
 		info->serial_signals |= SerialSignal_RTS;
 	 	usc_set_serial_signals(info);
@@ -3045,7 +3045,7 @@ static void mgsl_set_termios(struct tty_struct *tty, struct ktermios *old_termio
 
 	/* Handle transition to B0 status */
 	if (old_termios->c_cflag & CBAUD &&
-	    !(tty->termios->c_cflag & CBAUD)) {
+	    !(tty->termios.c_cflag & CBAUD)) {
 		info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
 		spin_lock_irqsave(&info->irq_spinlock,flags);
 	 	usc_set_serial_signals(info);
@@ -3054,9 +3054,9 @@ static void mgsl_set_termios(struct tty_struct *tty, struct ktermios *old_termio
 	
 	/* Handle transition away from B0 status */
 	if (!(old_termios->c_cflag & CBAUD) &&
-	    tty->termios->c_cflag & CBAUD) {
+	    tty->termios.c_cflag & CBAUD) {
 		info->serial_signals |= SerialSignal_DTR;
- 		if (!(tty->termios->c_cflag & CRTSCTS) || 
+ 		if (!(tty->termios.c_cflag & CRTSCTS) || 
  		    !test_bit(TTY_THROTTLED, &tty->flags)) {
 			info->serial_signals |= SerialSignal_RTS;
  		}
@@ -3067,7 +3067,7 @@ static void mgsl_set_termios(struct tty_struct *tty, struct ktermios *old_termio
 	
 	/* Handle turning off CRTSCTS */
 	if (old_termios->c_cflag & CRTSCTS &&
-	    !(tty->termios->c_cflag & CRTSCTS)) {
+	    !(tty->termios.c_cflag & CRTSCTS)) {
 		tty->hw_stopped = 0;
 		mgsl_start(tty);
 	}
@@ -3287,7 +3287,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 		return 0;
 	}
 
-	if (tty->termios->c_cflag & CLOCAL)
+	if (tty->termios.c_cflag & CLOCAL)
 		do_clocal = true;
 
 	/* Wait for carrier detect and the line to become
@@ -3313,7 +3313,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 	port->blocked_open++;
 	
 	while (1) {
-		if (tty->termios->c_cflag & CBAUD)
+		if (tty->termios.c_cflag & CBAUD)
 			tty_port_raise_dtr_rts(port);
 		
 		set_current_state(TASK_INTERRUPTIBLE);