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USB: ftdi_sio: remove tty->low_latency

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

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Johan Hovold 2009-10-07 20:05:04 +02:00 committed by Greg Kroah-Hartman
parent 36a07902c2
commit 0cbd81a9f6
1 changed files with 0 additions and 4 deletions
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4
drivers/usb/serial/ftdi_sio.c
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@ -1234,7 +1234,6 @@ static int set_serial_info(struct tty_struct *tty,
(new_serial.flags & ASYNC_FLAGS)); (new_serial.flags & ASYNC_FLAGS));
priv->custom_divisor = new_serial.custom_divisor; priv->custom_divisor = new_serial.custom_divisor;
tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
write_latency_timer(port); write_latency_timer(port);
check_and_exit: check_and_exit:
@ -1704,9 +1703,6 @@ static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
priv->rx_bytes = 0; priv->rx_bytes = 0;
spin_unlock_irqrestore(&priv->rx_lock, flags); spin_unlock_irqrestore(&priv->rx_lock, flags);
if (tty)
tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
write_latency_timer(port); write_latency_timer(port);
/* No error checking for this (will get errors later anyway) */ /* No error checking for this (will get errors later anyway) */