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authorOliver Neukum <oliver@neukum.org>2009-04-20 19:28:53 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2009-04-24 01:15:29 +0400
commit2400a2bfbd0e912193fe3b077f492d4980141813 (patch)
treee2e1bcc34252c14662c80df15c44703ead9d589c /drivers/usb/serial/cyberjack.c
parent212b8f0c3f5a2280bfa1d6ab13a6fe98552becaa (diff)
downloadlinux-2400a2bfbd0e912193fe3b077f492d4980141813.tar.xz
USB: removal of tty->low_latency hack dating back to the old serial code
This removes tty->low_latency from all USB serial drivers that push data into the tty layer at hard interrupt context. It's no longer needed and actually harmful. Signed-off-by: Oliver Neukum <oliver@neukum.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/cyberjack.c')
-rw-r--r--drivers/usb/serial/cyberjack.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
index 858bdd038fbc..dd501bb63ed6 100644
--- a/drivers/usb/serial/cyberjack.c
+++ b/drivers/usb/serial/cyberjack.c
@@ -175,13 +175,6 @@ static int cyberjack_open(struct tty_struct *tty,
dbg("%s - usb_clear_halt", __func__);
usb_clear_halt(port->serial->dev, port->write_urb->pipe);
- /* force low_latency on so that our tty_push actually forces
- * the data through, otherwise it is scheduled, and with high
- * data rates (like with OHCI) data can get lost.
- */
- if (tty)
- tty->low_latency = 1;
-
priv = usb_get_serial_port_data(port);
spin_lock_irqsave(&priv->lock, flags);
priv->rdtodo = 0;