linux-kernel - Re: [PATCH] memory: samsung: exynos5422-dmc: propagate error from exynos5_counters

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Date:   Tue, 4 Aug 2020 08:42:13 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Marek Szyprowski <m.szyprowski@...sung.com>
Cc:     linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        Lukasz Luba <lukasz.luba@....com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        linux-samsung-soc@...r.kernel.org,
        Chanwoo Choi <cw00.choi@...sung.com>
Subject: Re: [PATCH] memory: samsung: exynos5422-dmc: propagate error from
 exynos5_counters_get()

On Tue, Aug 04, 2020 at 08:12:10AM +0200, Marek Szyprowski wrote:
> exynos5_counters_get() might fail with -EPROBE_DEFER if the driver for
> devfreq event counter is not yet probed. Propagate that error value to
> the caller to ensure that the exynos5422-dmc driver will be probed again
> when devfreq event contuner is available.
> 
> This fixes boot hang if both exynos5422-dmc and exynos-ppmu drivers are
> compiled as modules.
> 
> Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
> ---
>  drivers/memory/samsung/exynos5422-dmc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Thanks, looks good. I'll apply it to fixes after merge window.

Best regards,
Krzysztof