linux-kernel - Re: [PATCH] clocksource: sun5i: fail gracefully when clock rate is unavailable

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Message-ID: <c00394ec-4817-629d-2a92-e62a7f2d31ab@linaro.org>
Date:   Thu, 24 Jan 2019 10:38:58 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Chen-Yu Tsai <wens@...e.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] clocksource: sun5i: fail gracefully when clock rate is
 unavailable

On 24/01/2019 09:56, Chen-Yu Tsai wrote:
> On Thu, Jan 10, 2019 at 5:19 PM Daniel Lezcano
> <daniel.lezcano@...aro.org> wrote:
>>
>> On 10/01/2019 07:22, Chen-Yu Tsai wrote:
>>> If the clock tree is not fully populated when the timer-sun5i init code
>>> is called, attempts to get the clock rate for the timer would fail and
>>> return 0.
>>>
>>> Make the init code for both clock events and clocksource check the
>>> returned clock rate and fail gracefully if the result is 0, instead of
>>> causing a divide by 0 exception later on.
>>>
>>> Fixes: 4a59058f0b09 ("clocksource/drivers/sun5i: Refactor the current code")
>>> Signed-off-by: Chen-Yu Tsai <wens@...e.org>
>>> ---
>>
>> Applied thanks.
> 
> I'm not seeing this in linux-next, nor the patch
> 
>     arm64: arch_timer: Workaround for Allwinner A64 timer instability
> 
> Any idea where these ended up?

Yeah, I have a rough idea. They are now in linux-next via the
clockevents/next branch.




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