drm/i915: fix page flip finish vs. prepare on plane B

The refreshed patch had a copy & paste bug.

Reported-by: Simon Farnsworth <simon.farnsworth@onelan.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index d676e55eb212..dba53d4b9fb3 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -947,9 +947,9 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
                 }
 
                 if (iir & I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT) {
+                        intel_prepare_page_flip(dev, 1);
                         if (dev_priv->flip_pending_is_done)
                                 intel_finish_page_flip_plane(dev, 1);
-                        intel_prepare_page_flip(dev, 1);
                 }
 
                 if (pipea_stats & vblank_status) {