diff --git a/libexternal/external.cpp b/libexternal/external.cpp
index f9ee94c..b9abc31 100644
--- a/libexternal/external.cpp
+++ b/libexternal/external.cpp
@@ -549,7 +549,8 @@
     if(mFd == -1)
         return false;
     struct mdp_display_commit ext_commit;
-    ext_commit.flags |= MDP_DISPLAY_COMMIT_OVERLAY;
+    memset(&ext_commit, 0, sizeof(struct mdp_display_commit));
+    ext_commit.flags = MDP_DISPLAY_COMMIT_OVERLAY;
     if (ioctl(mFd, MSMFB_DISPLAY_COMMIT, &ext_commit) == -1) {
         ALOGE("%s: MSMFB_DISPLAY_COMMIT for external failed, str: %s",
                 __FUNCTION__, strerror(errno));
diff --git a/libgralloc/fb_priv.h b/libgralloc/fb_priv.h
index 8f1a09b..9b08dd5 100644
--- a/libgralloc/fb_priv.h
+++ b/libgralloc/fb_priv.h
@@ -45,7 +45,6 @@
     pthread_mutex_t lock;
     private_handle_t *currentBuffer;
     struct fb_var_screeninfo info;
-    struct mdp_buf_fence fence;
     struct mdp_display_commit commit;
     struct fb_fix_screeninfo finfo;
     float xdpi;
diff --git a/libgralloc/framebuffer.cpp b/libgralloc/framebuffer.cpp
index 57df5b1..ca1840a 100644
--- a/libgralloc/framebuffer.cpp
+++ b/libgralloc/framebuffer.cpp
@@ -154,7 +154,6 @@
     if (fd < 0)
         return -errno;
 
-    memset(&module->fence, 0, sizeof(struct mdp_buf_fence));
     memset(&module->commit, 0, sizeof(struct mdp_display_commit));
 
     struct fb_fix_screeninfo finfo;