From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
To: Chris Wilson <chris@chris-wilson.co.uk>,
Daniel Vetter <daniel.vetter@intel.com>,
Jani Nikula <jani.nikula@linux.intel.com>,
David Airlie <airlied@linux.ie>,
intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915: fix possible null pointer dereference
Date: Mon, 20 Jul 2015 18:58:32 +0530 [thread overview]
Message-ID: <20150720132831.GA1645@sudip-PC> (raw)
In-Reply-To: <20150720123846.GA6166@nuc-i3427.alporthouse.com>
On Mon, Jul 20, 2015 at 01:38:46PM +0100, Chris Wilson wrote:
> On Mon, Jul 20, 2015 at 05:59:29PM +0530, Sudip Mukherjee wrote:
> > We were dereferencing dev first and then checking if it is NULL. Lets
> > check for NULL first and then dereference.
>
> The code is bonkers. Testing for a lack of a correctly constructed
> debugfs seq_file inside the debugfs seq_file callback is inane.
I missed seeing before sending this patch that there are some more
places where this has been done.
Then are you suggesting to remove the test?
regards
sudip
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next prev parent reply other threads:[~2015-07-20 13:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-20 12:29 [PATCH] drm/i915: fix possible null pointer dereference Sudip Mukherjee
2015-07-20 12:38 ` Chris Wilson
2015-07-20 13:28 ` Sudip Mukherjee [this message]
2015-07-20 14:23 ` Daniel Vetter
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