diff --git a/libs/surfaceflinger/Layer.cpp b/libs/surfaceflinger/Layer.cpp
index eb0614f..0258cee 100644
--- a/libs/surfaceflinger/Layer.cpp
+++ b/libs/surfaceflinger/Layer.cpp
@@ -133,7 +133,7 @@
 void Layer::reloadTexture(const Region& dirty)
 {
     Mutex::Autolock _l(mLock);
-    sp<GraphicBuffer> buffer(getFrontBuffer());
+    sp<GraphicBuffer> buffer(getFrontBufferLocked());
     if (LIKELY((mFlags & DisplayHardware::DIRECT_TEXTURE) &&
             (buffer->usage & GRALLOC_USAGE_HW_TEXTURE))) {
         int index = mFrontBufferIndex;
@@ -194,7 +194,7 @@
             }                
         }
     } else {
-        for (int i=0 ; i<NUM_BUFFERS ; i++)
+        for (size_t i=0 ; i<NUM_BUFFERS ; i++)
             mTextures[i].image = EGL_NO_IMAGE_KHR;
 
         GGLSurface t;
diff --git a/libs/surfaceflinger/Layer.h b/libs/surfaceflinger/Layer.h
index 6f59241..702c51a 100644
--- a/libs/surfaceflinger/Layer.h
+++ b/libs/surfaceflinger/Layer.h
@@ -80,7 +80,7 @@
     inline PixelFormat pixelFormat() const { return mFormat; }
 
 private:
-    inline sp<GraphicBuffer> getFrontBuffer() {
+    inline sp<GraphicBuffer> getFrontBufferLocked() {
         return mBuffers[mFrontBufferIndex];
     }
  
diff --git a/libs/surfaceflinger/LayerBlur.cpp b/libs/surfaceflinger/LayerBlur.cpp
index 0ef663f..744f2e9 100644
--- a/libs/surfaceflinger/LayerBlur.cpp
+++ b/libs/surfaceflinger/LayerBlur.cpp
@@ -189,8 +189,8 @@
             } else {
                 GLuint tw = 1 << (31 - clz(w));
                 GLuint th = 1 << (31 - clz(h));
-                if (tw < w) tw <<= 1;
-                if (th < h) th <<= 1;
+                if (tw < GLuint(w)) tw <<= 1;
+                if (th < GLuint(h)) th <<= 1;
                 glTexImage2D(GL_TEXTURE_2D, 0, mReadFormat, tw, th, 0,
                         mReadFormat, mReadType, NULL);
                 glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, 
diff --git a/libs/ui/SharedBufferStack.cpp b/libs/ui/SharedBufferStack.cpp
index 47c596c..b460757 100644
--- a/libs/ui/SharedBufferStack.cpp
+++ b/libs/ui/SharedBufferStack.cpp
@@ -97,10 +97,10 @@
 // ----------------------------------------------------------------------------
 
 SharedBufferBase::SharedBufferBase(SharedClient* sharedClient,
-        int surface, int num)
+        int surface, int num, int32_t identity)
     : mSharedClient(sharedClient), 
       mSharedStack(sharedClient->surfaces + surface),
-      mNumBuffers(num)
+      mNumBuffers(num), mIdentity(identity)
 {
 }
 
@@ -248,8 +248,8 @@
 // ============================================================================
 
 SharedBufferClient::SharedBufferClient(SharedClient* sharedClient,
-        int surface, int num)
-    : SharedBufferBase(sharedClient, surface, num), tail(0)
+        int surface, int num, int32_t identity)
+    : SharedBufferBase(sharedClient, surface, num, identity), tail(0)
 {
     tail = computeTail();
 }
@@ -353,7 +353,7 @@
 
 SharedBufferServer::SharedBufferServer(SharedClient* sharedClient,
         int surface, int num, int32_t identity)
-    : SharedBufferBase(sharedClient, surface, num)
+    : SharedBufferBase(sharedClient, surface, num, identity)
 {
     mSharedStack->init(identity);
     mSharedStack->head = num-1;
diff --git a/libs/ui/Surface.cpp b/libs/ui/Surface.cpp
index 7822533..2d83a8c 100644
--- a/libs/ui/Surface.cpp
+++ b/libs/ui/Surface.cpp
@@ -314,7 +314,7 @@
       mWidth(surface->mWidth), mHeight(surface->mHeight)
 {
     mSharedBufferClient = new SharedBufferClient(
-            mClient->mControl, mToken, 2);
+            mClient->mControl, mToken, 2, mIdentity);
 
     init();
 }
@@ -336,7 +336,7 @@
         mClient = SurfaceComposerClient::clientForConnection(clientBinder);
 
         mSharedBufferClient = new SharedBufferClient(
-                mClient->mControl, mToken, 2);
+                mClient->mControl, mToken, 2, mIdentity);
     }
 
     init();