linux-kernel - Re: [PATCH v2 2/4] soc: samsung: exynos-asv: handle reading revision register error

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Message-ID: <20210103161103.GB7799@kozik-lap>
Date:   Sun, 3 Jan 2021 17:11:03 +0100
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Sylwester Nawrocki <snawrocki@...nel.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Arnd Bergmann <arnd@...db.de>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Pankaj Dubey <pankaj.dubey@...sung.com>, stable@...r.kernel.org
Subject: Re: [PATCH v2 2/4] soc: samsung: exynos-asv: handle reading revision
 register error

On Mon, Dec 07, 2020 at 08:05:15PM +0100, Krzysztof Kozlowski wrote:
> If regmap_read() fails, the product_id local variable will contain
> random value from the stack.  Do not try to parse such value and fail
> the ASV driver probe.
> 
> Fixes: 5ea428595cc5 ("soc: samsung: Add Exynos Adaptive Supply Voltage driver")
> Cc: <stable@...r.kernel.org>
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
> ---
>  drivers/soc/samsung/exynos-asv.c | 8 +++++++-

Applied.

Best regards,
Krzysztof