linux-kernel - Re: [PATCH] spi: fsl-dspi: fix NULL pointer dereference

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Message-ID: <20201102111729.psxu6cx2mccbtra2@skbuf>
Date:   Mon, 2 Nov 2020 13:17:29 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     Qiang Zhao <qiang.zhao@....com>
Cc:     "broonie@...nel.org" <broonie@...nel.org>,
        "linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] spi: fsl-dspi: fix NULL pointer dereference

On Mon, Nov 02, 2020 at 02:19:28AM +0000, Qiang Zhao wrote:
> How about it looks like below:
> 
>     spi: fsl-dspi: fix wrong pointer in suspend/resume
> 
>     Since commit 530b5affc675 ("spi: fsl-dspi: fix use-after-free in
>     remove path"), this driver causes a "NULL pointer dereference"
>     in dspi_suspend/resume.
>     This is because since this commit, the drivers private data point to
>     "dspi" instead of "ctlr", the codes in suspend and resume func were
>     not modified correspondly.

Looks ok.