USB: ftdi_sio: remove tty->low_latency
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>
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@ -1234,7 +1234,6 @@ static int set_serial_info(struct tty_struct *tty,
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(new_serial.flags & ASYNC_FLAGS));
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(new_serial.flags & ASYNC_FLAGS));
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priv->custom_divisor = new_serial.custom_divisor;
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priv->custom_divisor = new_serial.custom_divisor;
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tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
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write_latency_timer(port);
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write_latency_timer(port);
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check_and_exit:
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check_and_exit:
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@ -1704,9 +1703,6 @@ static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
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priv->rx_bytes = 0;
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priv->rx_bytes = 0;
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spin_unlock_irqrestore(&priv->rx_lock, flags);
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spin_unlock_irqrestore(&priv->rx_lock, flags);
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if (tty)
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tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
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write_latency_timer(port);
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write_latency_timer(port);
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/* No error checking for this (will get errors later anyway) */
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/* No error checking for this (will get errors later anyway) */
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