On Fri, 19 Feb 2010, Martin Chaplet wrote:
> Hi,
>
> I did a little fix for this in ftdi driver for 2.6.27 kernel ... perhaps it can
> help.
> Here is the patch:
...
> +static int ftdi_suspend(struct usb_serial *serial, pm_message_t message)
> +{
> + struct usb_serial_port *port;
> + struct ftdi_private *priv; //= usb_get_serial_port_data(port);
> + int i;
> +
> + /* Multi-port compatibility (even if generally, there is only one port by
> 'chip') */
> + for (i = 0; i < serial->num_ports; i++) {
> + port = serial->port[i];
> + priv = usb_get_serial_port_data(port);
> +
> + /* TODO: Check for Flow control and disable it if necessary */
> +
> + /* cancel any scheduled reading */
> + cancel_delayed_work(&priv->rx_work);
> + flush_scheduled_work();
flush_scheduled_work() shouldn't be used in drivers. Use
cancel_delayed_work_sync() instead.
Alan Stern
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