[PATCH 22/22] squash: fix vlv crash

[José Roberto de Souza]

---
 drivers/gpu/drm/i915/intel_dp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 436c22de33b6..5fe34276cc49 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -939,6 +939,9 @@ void intel_power_sequencer_reset(struct drm_i915_private *dev_priv)
 		    !IS_GEN9_LP(dev_priv)))
 		return;
 
+	if (!INTEL_INFO(dev_priv)->num_pipes)
+		return;
+
 	/*
 	 * We can't grab pps_mutex here due to deadlock with power_domain
 	 * mutex when power_domain functions are called while holding pps_mutex.
-- 
2.18.0