linux-kernel - Re: [PATCH 1/3] crypto: hw_random

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Message-ID: <20170324170148.ew7ozpt5jfwdx5yn@kozik-lap>
Date:   Fri, 24 Mar 2017 20:01:48 +0300
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        Kukjin Kim <kgene@...nel.org>,
        Javier Martinez Canillas <javier@....samsung.com>,
        Matt Mackall <mpm@...enic.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-crypto@...r.kernel.org, Olof Johansson <olof@...om.net>,
        Arnd Bergmann <arnd@...db.de>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: Re: [PATCH 1/3] crypto: hw_random - Add new Exynos RNG driver

On Fri, Mar 24, 2017 at 05:45:41PM +0100, Bartlomiej Zolnierkiewicz wrote:
> > > > And I think the probe might be called twice, for example in case of
> > > > mistake in DTB.
> > > 
> > > Even if this is possible resource allocation code in the driver will
> > > take take care of handling it just fine,
> > 
> > Indeed, the devm_ioremap_resource() solves the case. I can drop the
> > check then.
> 
> Looking on this a bit more it seems that devm_ioremap_resource() will
> not cover all mistakes (using compatible by mistake in some other DTB
> node).
> 
> Leave the check, I take my objection back.

Great! Thanks for feedback.

Best regards,
Krzysztof