From c2c1f2f24cd70bdcf1958157bab38467bf0fdc71 Mon Sep 17 00:00:00 2001
From: Daniel Lam <dalam@google.com>
Date: Wed, 7 Mar 2012 14:11:29 -0800
Subject: [PATCH] BufferQueue: fixed issues with buffer slots not available

Bug: 6120953
Change-Id: I61d97d650c8dee0a6d7c19f2f50aa92a5f159095
---
 libs/gui/BufferQueue.cpp | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/libs/gui/BufferQueue.cpp b/libs/gui/BufferQueue.cpp
index 25a4c227f..513a00e9e 100644
--- a/libs/gui/BufferQueue.cpp
+++ b/libs/gui/BufferQueue.cpp
@@ -370,18 +370,13 @@ status_t BufferQueue::dequeueBuffer(int *outBuf, uint32_t w, uint32_t h,
                 }
             }
 
-            // we're in synchronous mode and didn't find a buffer, we need to
-            // wait for some buffers to be consumed
-            tryAgain = mSynchronousMode && (foundSync == INVALID_BUFFER_SLOT);
+            // if no buffer is found, wait for a buffer to be released
+            tryAgain = found == INVALID_BUFFER_SLOT;
             if (tryAgain) {
                 mDequeueCondition.wait(mMutex);
             }
         }
 
-        if (mSynchronousMode && found == INVALID_BUFFER_SLOT) {
-            // foundSync guaranteed to be != INVALID_BUFFER_SLOT
-            found = foundSync;
-        }
 
         if (found == INVALID_BUFFER_SLOT) {
             // This should not happen.