Re: [PATCH/RFC] serial: sh-sci: Fix deadlock caused by serial output request

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Hi Simon,

On Mon, Nov 7, 2016 at 4:40 PM, Simon Horman <horms@xxxxxxxxxxxx> wrote:
> On Mon, Nov 07, 2016 at 04:20:56PM +0100, Geert Uytterhoeven wrote:
>> On Mon, Nov 7, 2016 at 4:14 PM, Simon Horman <horms+renesas@xxxxxxxxxxxx> wrote:
>> > From: Takatoshi Akiyama <takatoshi.akiyama.kj@xxxxxxxxxxxxxxxxxxxxxxxx>
>> >
>> > While spin is already locked, serial output request causes the deadlock,
>> > because serial output process also tries to lock the spin.
>> > This patch removes serial output with spin locked.
>> >
>> > Signed-off-by: Takatoshi Akiyama <takatoshi.akiyama.kj@xxxxxxxxxxxxxxxxxxxxxxxx>
>> > Signed-off-by: Takeshi Kihara <takeshi.kihara.df@xxxxxxxxxxx>
>> > Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
>>
>> Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
>>
>> Gr{oetje,eeting}s,
>
> Thanks. Will you pass this on to Greg or should I do so?

Feel free to pass to Greg (doesn't he use patchwork on linux-serial?).
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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