netdev - [PATCH] hso: remove setting of low

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Message-ID: <alpine.DEB.2.00.1006111100250.6812@filip-linux>
Date:	Fri, 11 Jun 2010 11:17:06 +0200 (CEST)
From:	f.aben@...ion.com
To:	davem@...emloft.net
cc:	linux-usb@...r.kernel.org, netdev@...r.kernel.org,
	j.dumon@...ion.com
Subject: [PATCH] hso: remove setting of low_latency flag


This patch removes the setting of the low_latency flag. 
tty_flip_buffer_push() is occasionally being called in irq context, which 
causes a hang if the low_latency flag is set.
Removing the low_latency flag only seems to impact the flush to ldisc, 
which will now be put on a workqueue.

Signed-off-by: Filip Aben <f.aben@...ion.com>

---

diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 0a3c41f..4dd2351 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -1334,7 +1334,6 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
 	/* check for port already opened, if not set the termios */
 	serial->open_count++;
 	if (serial->open_count == 1) {
-		tty->low_latency = 1;
 		serial->rx_state = RX_IDLE;
 		/* Force default termio settings */
 		_hso_serial_set_termios(tty, NULL);
--
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