Commit 0cbd81a9 authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
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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: default avatarJohan Hovold <jhovold@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 36a07902

drivers/usb/serial/ftdi_sio.c

+0 −4
Original line number Diff line number Diff line
@@ -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) */

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