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drm/i915: Set crtc backpointer when duplicating crtc state 

In the path were there is no state to duplicate, the allocated crtc
state wouldn't have the crtc backpointer initialized.

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ander Conselvan de Oliveira 2015-03-03 15:21:55 +02:00 committed by Daniel Vetter
parent 17fe10218b
commit a91572f35b
1 changed files with 9 additions and 3 deletions
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12
drivers/gpu/drm/i915/intel_atomic.c
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@ -214,12 +214,18 @@ struct drm_crtc_state *
intel_crtc_duplicate_state(struct drm_crtc *crtc)
{
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_crtc_state *crtc_state;
if (WARN_ON(!intel_crtc->config))
return kzalloc(sizeof(*intel_crtc->config), GFP_KERNEL);
crtc_state = kzalloc(sizeof(*crtc_state), GFP_KERNEL);
else
crtc_state = kmemdup(intel_crtc->config,
sizeof(*intel_crtc->config), GFP_KERNEL);
return kmemdup(intel_crtc->config, sizeof(*intel_crtc->config),
GFP_KERNEL);
if (crtc_state)
crtc_state->base.crtc = crtc;
return &crtc_state->base;
}
/**