diff --git a/libs/gui/IGraphicBufferConsumer.cpp b/libs/gui/IGraphicBufferConsumer.cpp
index 3598a86..cdd06f3 100644
--- a/libs/gui/IGraphicBufferConsumer.cpp
+++ b/libs/gui/IGraphicBufferConsumer.cpp
@@ -71,11 +71,11 @@
     size_t c = 0;
     if (mGraphicBuffer != 0) {
         c += mGraphicBuffer->getFlattenedSize();
-        FlattenableUtils::align<4>(c);
+        c = FlattenableUtils::align<4>(c);
     }
     if (mFence != 0) {
         c += mFence->getFlattenedSize();
-        FlattenableUtils::align<4>(c);
+        c = FlattenableUtils::align<4>(c);
     }
     return sizeof(int32_t) + c + getPodSize();
 }
@@ -91,11 +91,21 @@
     return c;
 }
 
+static void writeBoolAsInt(void*& buffer, size_t& size, bool b) {
+    FlattenableUtils::write(buffer, size, static_cast<int32_t>(b));
+}
+
+static bool readBoolFromInt(void const*& buffer, size_t& size) {
+    int32_t i;
+    FlattenableUtils::read(buffer, size, i);
+    return static_cast<bool>(i);
+}
+
 status_t IGraphicBufferConsumer::BufferItem::flatten(
         void*& buffer, size_t& size, int*& fds, size_t& count) const {
 
     // make sure we have enough space
-    if (count < BufferItem::getFlattenedSize()) {
+    if (size < BufferItem::getFlattenedSize()) {
         return NO_MEMORY;
     }
 
@@ -128,12 +138,12 @@
     FlattenableUtils::write(buffer, size, mTransform);
     FlattenableUtils::write(buffer, size, mScalingMode);
     FlattenableUtils::write(buffer, size, mTimestamp);
-    FlattenableUtils::write(buffer, size, mIsAutoTimestamp);
+    writeBoolAsInt(buffer, size, mIsAutoTimestamp);
     FlattenableUtils::write(buffer, size, mFrameNumber);
     FlattenableUtils::write(buffer, size, mBuf);
-    FlattenableUtils::write(buffer, size, mIsDroppable);
-    FlattenableUtils::write(buffer, size, mAcquireCalled);
-    FlattenableUtils::write(buffer, size, mTransformToDisplayInverse);
+    writeBoolAsInt(buffer, size, mIsDroppable);
+    writeBoolAsInt(buffer, size, mAcquireCalled);
+    writeBoolAsInt(buffer, size, mTransformToDisplayInverse);
 
     return NO_ERROR;
 }
@@ -170,12 +180,12 @@
     FlattenableUtils::read(buffer, size, mTransform);
     FlattenableUtils::read(buffer, size, mScalingMode);
     FlattenableUtils::read(buffer, size, mTimestamp);
-    FlattenableUtils::read(buffer, size, mIsAutoTimestamp);
+    mIsAutoTimestamp = readBoolFromInt(buffer, size);
     FlattenableUtils::read(buffer, size, mFrameNumber);
     FlattenableUtils::read(buffer, size, mBuf);
-    FlattenableUtils::read(buffer, size, mIsDroppable);
-    FlattenableUtils::read(buffer, size, mAcquireCalled);
-    FlattenableUtils::read(buffer, size, mTransformToDisplayInverse);
+    mIsDroppable = readBoolFromInt(buffer, size);
+    mAcquireCalled = readBoolFromInt(buffer, size);
+    mTransformToDisplayInverse = readBoolFromInt(buffer, size);
 
     return NO_ERROR;
 }