diff --git a/include/gui/IGraphicBufferProducer.h b/include/gui/IGraphicBufferProducer.h
index c62bc58..9353042 100644
--- a/include/gui/IGraphicBufferProducer.h
+++ b/include/gui/IGraphicBufferProducer.h
@@ -339,20 +339,19 @@
         void setSurfaceDamage(const Region& damage) { surfaceDamage = damage; }
 
     private:
-        int64_t timestamp;
-        int isAutoTimestamp;
-        android_dataspace dataSpace;
+        int64_t timestamp{0};
+        int isAutoTimestamp{0};
+        android_dataspace dataSpace{HAL_DATASPACE_UNKNOWN};
         Rect crop;
-        int scalingMode;
-        uint32_t transform;
-        uint32_t stickyTransform;
+        int scalingMode{0};
+        uint32_t transform{0};
+        uint32_t stickyTransform{0};
         sp<Fence> fence;
         Region surfaceDamage;
     };
 
     // QueueBufferOutput must be a POD structure
     struct __attribute__ ((__packed__)) QueueBufferOutput {
-        inline QueueBufferOutput() { }
         // outWidth - filled with default width applied to the buffer
         // outHeight - filled with default height applied to the buffer
         // outTransformHint - filled with default transform applied to the buffer
@@ -379,10 +378,10 @@
             nextFrameNumber = inNextFrameNumber;
         }
     private:
-        uint32_t width;
-        uint32_t height;
-        uint32_t transformHint;
-        uint32_t numPendingBuffers;
+        uint32_t width{0};
+        uint32_t height{0};
+        uint32_t transformHint{0};
+        uint32_t numPendingBuffers{0};
         uint64_t nextFrameNumber{0};
     };
 
diff --git a/include/private/gui/LayerState.h b/include/private/gui/LayerState.h
index 4b3fcc6..292dd3b 100644
--- a/include/private/gui/LayerState.h
+++ b/include/private/gui/LayerState.h
@@ -74,10 +74,10 @@
     status_t    read(const Parcel& input);
 
             struct matrix22_t {
-                float   dsdx;
-                float   dtdx;
-                float   dsdy;
-                float   dtdy;
+                float   dsdx{0};
+                float   dtdx{0};
+                float   dsdy{0};
+                float   dtdy{0};
             };
             sp<IBinder>     surface;
             uint32_t        what;
diff --git a/include/ui/DisplayInfo.h b/include/ui/DisplayInfo.h
index ad73ee7..1f5a991 100644
--- a/include/ui/DisplayInfo.h
+++ b/include/ui/DisplayInfo.h
@@ -26,17 +26,17 @@
 namespace android {
 
 struct DisplayInfo {
-    uint32_t w;
-    uint32_t h;
-    float xdpi;
-    float ydpi;
-    float fps;
-    float density;
-    uint8_t orientation;
-    bool secure;
-    nsecs_t appVsyncOffset;
-    nsecs_t presentationDeadline;
-    int colorTransform;
+    uint32_t w{0};
+    uint32_t h{0};
+    float xdpi{0};
+    float ydpi{0};
+    float fps{0};
+    float density{0};
+    uint8_t orientation{0};
+    bool secure{false};
+    nsecs_t appVsyncOffset{0};
+    nsecs_t presentationDeadline{0};
+    int colorTransform{0};
 };
 
 /* Display orientations as defined in Surface.java and ISurfaceComposer.h. */
diff --git a/include/ui/DisplayStatInfo.h b/include/ui/DisplayStatInfo.h
index 0549a83..09543ec 100644
--- a/include/ui/DisplayStatInfo.h
+++ b/include/ui/DisplayStatInfo.h
@@ -22,8 +22,8 @@
 namespace android {
 
 struct DisplayStatInfo {
-    nsecs_t vsyncTime;
-    nsecs_t vsyncPeriod;
+    nsecs_t vsyncTime{0};
+    nsecs_t vsyncPeriod{0};
 };
 
 }; // namespace android