> > +#ifdef CONFIG_SERIAL_8250
Coule be modular
> > + if (!io) {
> > + struct uart_port port = { .iobase = data->sbase };
> > + int line = serial8250_find_port(&port);
> > + if (line >= 0) {
> > + serial8250_unregister_port(line);
>
> Hmm... Not sure if it makes sense, but perhaps the unregistering code
> should be reverting serial8250_unregister_port(line).
Can't do that anyway it may well be busy.
> > --- a/drivers/tty/serial/8250/8250.c
> > +++ b/drivers/tty/serial/8250/8250.c
> > @@ -2914,6 +2914,7 @@ int serial8250_find_port(struct uart_port *p)
> > }
> > return -ENODEV;
> > }
> > +EXPORT_SYMBOL(serial8250_find_port);
No - this leaks all the uart internal abstractions into the tree. We
really don't want that happening.
The right way to fix this (and a couple of other uglies) is to make 8250
on x86 scan for PnP ports *before* generic ports and to make a note of
any ports to skip on the PnP scan (so that the port poking scan ignores
them too)
Alan
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