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author	Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
	Fri, 23 Jan 2015 07:27:59 +0000 (09:27 +0200)
committer	Daniel Vetter <daniel.vetter@ffwll.ch>
	Tue, 27 Jan 2015 09:02:52 +0000 (10:02 +0100)
commit	defb6c0649231919dcd95a7b4ceb250ea5717717
tree	167b650623d866dee15689d8bee6a4e821af31d0	tree \| snapshot
parent	1132620becbf29e3ceabfe914c7ce9391ce2e84e	commit \| diff

drm/atomic: Fix potential use of state after free

The atomic helpers rely on drm_atomic_state_clear() to reset an atomic
state if a retry is needed due to the w/w mutexes. The subsequent calls
to drm_atomic_get_{crtc,plane,...}_state() would then return the stale
pointers in state->{crtc,plane,...}_states.

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/drm_atomic.c

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