[PATCH 5/8] drm/i915/skl: Fail the flip if no FB for WM calculation
Mahesh Kumar
mahesh1.kumar at intel.com
Thu Feb 9 08:40:25 UTC 2017
Fail the flip if no FB is present but plane_state is set as visible,
that is not a valid combination so instead of continue fail the flip.
Signed-off-by: Mahesh Kumar <mahesh1.kumar at intel.com>
---
drivers/gpu/drm/i915/intel_pm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 35665b69541e..5361d42f19a4 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3740,7 +3740,8 @@ skl_compute_wm_level(const struct drm_i915_private *dev_priv,
if (!intel_pstate)
intel_pstate = to_intel_plane_state(plane->state);
- WARN_ON(!intel_pstate->base.fb);
+ if (WARN_ON(!intel_pstate->base.fb))
+ return -EINVAL;
ddb_blocks = skl_ddb_entry_size(&ddb->plane[pipe][intel_plane->id]);
--
2.11.0
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