Re: [PATCH 1/2] serial: imx: Introduce timeout when waiting on transmitter empty

[Esben Haabendal]

Fabio Estevam <festevam@xxxxxxxxx> writes:

> On Fri, Apr 5, 2024 at 6:25 AM Esben Haabendal <esben@xxxxxxxxxx> wrote:
>>
>> By waiting at most 1 second for USR2_TXDC to be set, we avoid a potentital
>
> s/potentital/potential

Thanks, fixing.

> Could you elaborate on this deadlock? Have you seen it in practice?

I cannot say for sure if I have seen it. But in some cases, that is
exactly what you would see. Nothing.

If it would occur during shutdown, the console would simply stop/block,
and you would see nothing.

> Should a Fixes tag be added?

Which commit should I add to that tag? The polling without timeout dates
back to at least 2.6.12-rc2.

/Esben