From b7d28e32c93801d60c1a7a817f774a02b7bdde43 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 2 Jul 2012 12:34:24 +0200 Subject: USB: metro-usb: fix tty_flip_buffer_push use Do not set low_latency flag at open as tty_flip_buffer_push must not be called in IRQ context with low_latency set. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c index 81423f7..d47eb06 100644 --- a/drivers/usb/serial/metro-usb.c +++ b/drivers/usb/serial/metro-usb.c @@ -222,14 +222,6 @@ static int metrousb_open(struct tty_struct *tty, struct usb_serial_port *port) metro_priv->throttled = 0; spin_unlock_irqrestore(&metro_priv->lock, flags); - /* - * 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; - /* Clear the urb pipe. */ usb_clear_halt(serial->dev, port->interrupt_in_urb->pipe); -- cgit v0.10.2