linux-kernel - Re: [PATCH] mmc: host: fix potential null pointer dereference

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Date:   Thu, 25 May 2017 11:12:08 +0200 (CEST)
From:   Stefan Wahren <stefan.wahren@...e.com>
To:     "Gustavo A. R. Silva" <garsilva@...eddedor.com>,
        Eric Anholt <eric@...olt.net>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Florian Fainelli <f.fainelli@...il.com>
Cc:     linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org,
        linux-rpi-kernel@...ts.infradead.org,
        Scott Branden <sbranden@...adcom.com>,
        Ray Jui <rjui@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] mmc: host: fix potential null pointer dereference

Hi Gustavo,

> "Gustavo A. R. Silva" <garsilva@...eddedor.com> hat am 24. Mai 2017 um 01:42 geschrieben:
> 
> 
> Null check at line 1165: if (mrq->cmd), implies that mrq->cmd might
> be NULL.
> Add null checks before dereferencing pointer mrq->cmd in order to avoid
> any potential NULL pointer dereference.
> 
> Addresses-Coverity-ID: 1408740
> Signed-off-by: Gustavo A. R. Silva <garsilva@...eddedor.com>

Tested-by: Stefan Wahren <stefan.wahren@...e.com>

with a Raspberry Pi Zero.

But please change the subject to make sure it's bcm2835 related:

mmc: bcm2835: fix potential null pointer dereferences

Thanks
Stefan