From 33292ab1ae4f12d01c03ab11ad960a9dfb807b92 Mon Sep 17 00:00:00 2001
From: Elvis Lee <kwangwoong.lee@lge.com>
Date: Sat, 21 Jul 2012 12:45:41 +0900
Subject: [PATCH] release and clear next_bo when pageFlip fails

pageFlip failure makes starvation in waitForPageFlipComplete.

Change-Id: Ifbcdda2a4138753f475e4c37767058014cc4230b
Reviewed-by: Laszlo Agocs <laszlo.p.agocs@nokia.com>
---
 src/plugins/platforms/kms/qkmsscreen.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/plugins/platforms/kms/qkmsscreen.cpp b/src/plugins/platforms/kms/qkmsscreen.cpp
index abf86d4..9c17c72 100644
--- a/src/plugins/platforms/kms/qkmsscreen.cpp
+++ b/src/plugins/platforms/kms/qkmsscreen.cpp
@@ -233,7 +233,11 @@ void QKmsScreen::performPageFlip()
                                          fb_id,
                                          DRM_MODE_PAGE_FLIP_EVENT, this);
     if (pageFlipStatus)
+    {
         qWarning("Pageflip status: %d", pageFlipStatus);
+        gbm_surface_release_buffer(m_gbmSurface, m_next_bo);
+        m_next_bo = 0;
+    }
 }
 
 void QKmsScreen::handlePageFlipped()
-- 
2.7.4