linux-kernel - Re: [PATCH] tpm: fix potential NULL pointer access in tpm_del_char

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Message-ID: <20210924133321.GX3544071@ziepe.ca>
Date:   Fri, 24 Sep 2021 10:33:21 -0300
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Lino Sanfilippo <LinoSanfilippo@....de>
Cc:     Jarkko Sakkinen <jarkko@...nel.org>, peterhuewe@....de,
        p.rosenberger@...bus.com, linux-integrity@...r.kernel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH] tpm: fix potential NULL pointer access in
 tpm_del_char_device()

On Fri, Sep 24, 2021 at 03:29:46PM +0200, Lino Sanfilippo wrote:

> So this bug is triggered when the bcm2835 drivers shutdown() function is called since this
> driver does something quite unusual: it unregisters the spi controller in its shutdown()
> handler.

This seems wrong

Jason