From d30b36d1fd0c7ab80553e784a155266be9703e47 Mon Sep 17 00:00:00 2001
From: Jamie Gennis <jgennis@google.com>
Date: Sun, 30 Sep 2012 20:02:03 -0700
Subject: [PATCH] SurfaceFlinger: reset the FB_TGT acquire fence

This change makes SurfaceFlinger reset the acquire fence fd to -1 after each
call to HWComposer::commit.  The HWComposer implementation is resonsible for
closing the fd, so SurfaceFlinger should make sure not to pass it to HWC
multiple times.

Change-Id: I79554d9f6d6ef2b77d632d40251516c1f5b16ddb
Bug: 7258954
---
 services/surfaceflinger/DisplayHardware/HWComposer.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index 960fb0e10..d4adad253 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
@@ -613,6 +613,7 @@ int HWComposer::getAndResetReleaseFenceFd(int32_t id) {
         const DisplayData& disp(mDisplayData[id]);
         if (disp.framebufferTarget) {
             fd = disp.framebufferTarget->releaseFenceFd;
+            disp.framebufferTarget->acquireFenceFd = -1;
             disp.framebufferTarget->releaseFenceFd = -1;
         }
     }