linux-kernel - Re: [PATCH v2] pci: pcie-rcar: fix a potential NULL pointer dereference

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Date:   Fri, 15 Mar 2019 11:07:17 +0100 (CET)
From:   Ulrich Hecht <uli@...nd.eu>
To:     Kangjie Lu <kjlu@....edu>
Cc:     Simon Horman <horms@...ge.net.au>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>, linux-pci@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] pci: pcie-rcar: fix a potential NULL pointer
 dereference


> On March 15, 2019 at 8:29 AM Kangjie Lu <kjlu@....edu> wrote:
> 
> 
> In case __get_free_pages fails and returns NULL, the fix returns
> -ENOMEM and releases resources to avoid NULL pointer dereference.
> 
> Signed-off-by: Kangjie Lu <kjlu@....edu>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>

Reviewed-by: Ulrich Hecht <uli+renesas@...nd.eu>

CU
Uli