Re: serial core: crash / race condition on unbind

[Geert Uytterhoeven]

Hi Peter,

On Tue, Mar 11, 2014 at 4:14 AM, Peter Hurley <peter@xxxxxxxxxxxxxxxxxx> wrote:
>>
>>          [...]
>>
>>          /*
>>           * Indicate that there isn't a port here anymore.
>>           */
>>          uport->type = PORT_UNKNOWN;
>>
>>          state->uart_port = NULL;
>
> How did this ever work?
>
> Detaching the ll driver from the tty port in this manner is not ok;
> as you already note, it blows up if consoles are still running.

No one unbinds serial drivers using serial_core, as all these drivers are
for fixed hardware?

Hot-pluggable usb-serial doesn't use serial_core.

Thanks!

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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