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Subject[PATCH 1/4] USB: ftdi_sio: remove tty->low_latency
Date
Fixes tty_flip_buffer_push being called from hard interrupt context with
low_latency set.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
---
drivers/usb/serial/ftdi_sio.c | 4 ----
1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 4f883b1..0ac2c2f 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1234,7 +1234,6 @@ static int set_serial_info(struct tty_struct *tty,
(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:
@@ -1704,9 +1703,6 @@ static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
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) */
--
1.6.5.rc2


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