drm/i915: Propagate error from drm_vblank_get() during page-flipping.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index f2f812e..bf486b1 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4897,19 +4897,8 @@
mutex_lock(&dev->struct_mutex);
ret = intel_pin_and_fence_fb_obj(dev, obj);
- if (ret != 0) {
- mutex_unlock(&dev->struct_mutex);
-
- spin_lock_irqsave(&dev->event_lock, flags);
- intel_crtc->unpin_work = NULL;
- spin_unlock_irqrestore(&dev->event_lock, flags);
-
- kfree(work);
-
- DRM_DEBUG_DRIVER("flip queue: %p pin & fence failed\n",
- to_intel_bo(obj));
- return ret;
- }
+ if (ret)
+ goto cleanup_work;
/* Reference the objects for the scheduled work. */
drm_gem_object_reference(work->old_fb_obj);
@@ -4917,7 +4906,11 @@
crtc->fb = fb;
i915_gem_object_flush_write_domain(obj);
- drm_vblank_get(dev, intel_crtc->pipe);
+
+ ret = drm_vblank_get(dev, intel_crtc->pipe);
+ if (ret)
+ goto cleanup_objs;
+
obj_priv = to_intel_bo(obj);
atomic_inc(&obj_priv->pending_flip);
work->pending_flip_obj = obj;
@@ -4954,6 +4947,20 @@
trace_i915_flip_request(intel_crtc->plane, obj);
return 0;
+
+cleanup_objs:
+ drm_gem_object_unreference(work->old_fb_obj);
+ drm_gem_object_unreference(obj);
+cleanup_work:
+ mutex_unlock(&dev->struct_mutex);
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+ intel_crtc->unpin_work = NULL;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ kfree(work);
+
+ return ret;
}
static const struct drm_crtc_helper_funcs intel_helper_funcs = {