linux-kernel - Re: [v2, 2/3] powerpc/powernv: Add sanity checks to pnv_pci_get_{gpu|npu}

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Message-Id: <3vzNHz2TyZz9sCX@ozlabs.org>
Date:   Thu,  6 Apr 2017 23:06:07 +1000 (AEST)
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Alistair Popple <alistair@...ple.id.au>
Cc:     devicetree@...r.kernel.org,
        Alistair Popple <alistair@...ple.id.au>, mhairgrove@...dia.com,
        linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org,
        robh+dt@...nel.org, shailendras@...dia.com
Subject: Re: [v2, 2/3] powerpc/powernv: Add sanity checks to pnv_pci_get_{gpu|npu}_dev

On Mon, 2017-04-03 at 09:51:43 UTC, Alistair Popple wrote:
> The pnv_pci_get_{gpu|npu}_dev functions are used to find associations
> between nvlink PCIe devices and standard PCIe devices. However they
> lacked basic sanity checking which results in NULL pointer
> dereferencing if they are incorrect called can be harder to spot than
> an explicit WARN_ON.
> 
> Signed-off-by: Alistair Popple <alistair@...ple.id.au>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/4c3b89effc281704d5395282c800c4

cheers