[PATCH] drm: Fix use-after-free in the shadow-attache exit code

[Dave Jones]

On Thu, Jan 30, 2014 at 05:58:38PM +0100, Daniel Vetter wrote:
 > This regression has been introduced in
 > 
 > commit b3f2333de8e81b089262b26d52272911523e605f
 > Author: Daniel Vetter <daniel.vetter at ffwll.ch>
 > Date:   Wed Dec 11 11:34:31 2013 +0100
 > 
 >     drm: restrict the device list for shadow attached drivers
 > 

btw, I noticed this because it got flagged in the nightly coverity runs.
Of the 18 new issues added yesterday 14 were from drivers/gpu/

If drm developers want to sign up at http://scan.coverity.com
to help out looking over those (and the backlog: stats below)
I can get those accounts approved quickly.

I've been going through trying to clear out as much of the 'noise'
as possible, but it's a huge job.  There's a bunch of cases where
the checker can't figure out if it's a real bug or not because
it doesn't know things like "the hardware will only ever return
these values", but the majority look like actual coding flaws.

	Dave

Currently outstanding issues:

Radeon: 64 
Nouveau: 36
i915: 32
misc drm: 24
gma500: 11
qxl: 7