Error check in queuebuffer in SurfaceTextureClient

In queuebuffer, if the surfacetexture returns an error,
surfacetextureclient should check for that and pass on the error.

Change-Id: Ie6d70e779fac0702f372eb4df5ecb655280875ee
diff --git a/libs/gui/SurfaceTextureClient.cpp b/libs/gui/SurfaceTextureClient.cpp
index 710ef94..0bee0f1 100644
--- a/libs/gui/SurfaceTextureClient.cpp
+++ b/libs/gui/SurfaceTextureClient.cpp
@@ -219,9 +219,12 @@
     if (i < 0) {
         return i;
     }
-    mSurfaceTexture->queueBuffer(i, timestamp,
+    status_t err = mSurfaceTexture->queueBuffer(i, timestamp,
             &mDefaultWidth, &mDefaultHeight, &mTransformHint);
-    return OK;
+    if (err != OK)  {
+        LOGE("queueBuffer: error queuing buffer to SurfaceTexture, %d", err);
+    }
+    return err;
 }
 
 int SurfaceTextureClient::query(int what, int* value) const {