[07/46] USB: ftdi_sio: remove tty->low_latency

[Greg KH]

2.6.31-stable review patch.  If anyone has any objections, please let us know.

------------------
From: Johan Hovold <jhovold@xxxxxxxxx>

commit 0cbd81a9f6bac734ac3266687bf027af1e395270 upstream.

Fixes tty_flip_buffer_push being called from hard interrupt context with
low_latency set.

Signed-off-by: Johan Hovold <jhovold@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 drivers/usb/serial/ftdi_sio.c |    4 ----
 1 file changed, 4 deletions(-)

--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1235,7 +1235,6 @@ static int set_serial_info(struct tty_st
 					(new_serial.flags & ASYNC_FLAGS));
 	priv->custom_divisor = new_serial.custom_divisor;
 
-	tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
 	write_latency_timer(port);
 
 check_and_exit:
@@ -1706,9 +1705,6 @@ static int ftdi_open(struct tty_struct *
 	priv->rx_bytes = 0;
 	spin_unlock_irqrestore(&priv->rx_lock, flags);
 
-	if (tty)
-		tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-
 	write_latency_timer(port);
 
 	/* No error checking for this (will get errors later anyway) */


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