[Intel-gfx] [PATCH] drm/i915: reset drm state backpointer in crtc_state

[Chandra Konduru]

At end of intel_crtc_set_config, reset crtc_state's
drm_state back pointer to null.

Signed-off-by: Chandra Konduru <chandra.konduru at intel.com>
---
 drivers/gpu/drm/i915/intel_display.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index c84926b..f9c2e4d 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12451,8 +12451,10 @@ fail:
 	}
 
 out_config:
-	if (state)
+	if (state) {
 		drm_atomic_state_free(state);
+		to_intel_crtc(set->crtc)->config->base.state = NULL;
+	}
 
 	intel_set_config_free(config);
 	return ret;
-- 
1.7.9.5