On Sun, 18 Nov 2007 14:11:30 +0100
Borislav Petkov <[email protected]> wrote:
> On Thu, Nov 15, 2007 at 01:10:16PM -0800, Lucy McCoy wrote:
>
> > static int keyspan_open (struct usb_serial_port *port, struct file *filp)
> > {
> > struct keyspan_port_private *p_priv;
> > struct keyspan_serial_private *s_priv;
> > struct usb_serial *serial = port->serial;
> > const struct keyspan_device_details *d_details;
> > int i, err;
> > struct urb *urb;
> >
> > s_priv = usb_get_serial_data(serial);
> > p_priv = usb_get_serial_port_data(port);
> > d_details = p_priv->device_details;
> >
> > dbg("%s - port%d.", __FUNCTION__, port->number);
> >
> > /* Set some sane defaults */
> > p_priv->rts_state = 1;
> > p_priv->dtr_state = 1;
> > p_priv->baud = 9600;
> >
> > /* set CTS/RTS handshake etc. */
> > p_priv->cflag = CS8; /* 8/N/1 */
> > p_priv->flow_control = flow_none;
> >
> > /* force baud and lcr to be set on open */
> > p_priv->old_baud = 0;
> > p_priv->old_cflag = 0;
> >
> > p_priv->out_flip = 0;
> > p_priv->in_flip = 0;
> >
> > /* Reset low level data toggle and start reading from endpoints */
> > for (i = 0; i < 2; i++) {
> > if ((urb = p_priv->in_urbs[i]) == NULL)
> > continue;
> > urb->dev = serial->dev;
> >
> > /* make sure endpoint data toggle is synchronized with the device */
> >
> > usb_clear_halt(urb->dev, urb->pipe);
> >
> > if ((err = usb_submit_urb(urb, GFP_KERNEL)) != 0) {
> > dbg("%s - submit urb %d failed (%d)", __FUNCTION__, i, err);
> > }
> > }
> >
> > /* Reset low level data toggle on out endpoints */
> > for (i = 0; i < 2; i++) {
> > if ((urb = p_priv->out_urbs[i]) == NULL)
> > continue;
> > urb->dev = serial->dev;
> > /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe), 0); */
> > }
> >
> > keyspan_send_setup(port, 1);
> > //mdelay(100);
> > //keyspan_set_termios(port, NULL);
> >
> > return (0);
> > }
> >
>
> yes, after testing this i can confirm that this one fixes the NULL ptr
> problem here so you might want to submit a proper patch to Greg.
I'll merge revert-keyspan-init-termios-properly.patch soon, but afaik we
are still awaiting the real fix for this problem?
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