Re: [PATCH] TTY: fix UV serial console regression

[Alan Cox]

> Unless there is some bad race in the code, the hardware seems to be
> pretty broken. Otherwise pure MSR read should not cause such a bug,
> or?

UV serial being what actual hardware and system ?

> So to prevent the bug, revert to the old behavior. I.e. read modem
> status only if we really have to -- for non-CLOCAL set serials.
> Non-CLOCAL works on this hardware OK, I tried. See? I don't.

The old behaviour is rather driver dependant eg whether it used
serial_core or not.

Doesn't look an unreasonable change though.

Alan
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