diff --git a/camera/CameraBase.cpp b/camera/CameraBase.cpp
index 55376b0..04694cd 100644
--- a/camera/CameraBase.cpp
+++ b/camera/CameraBase.cpp
@@ -49,7 +49,7 @@
         DeathNotifier() {
         }
 
-        virtual void binderDied(const wp<IBinder>& who) {
+        virtual void binderDied(const wp<IBinder>& /*who*/) {
             ALOGV("binderDied");
             Mutex::Autolock _l(gLock);
             gCameraService.clear();
@@ -153,7 +153,7 @@
 }
 
 template <typename TCam, typename TCamTraits>
-void CameraBase<TCam, TCamTraits>::binderDied(const wp<IBinder>& who) {
+void CameraBase<TCam, TCamTraits>::binderDied(const wp<IBinder>& /*who*/) {
     ALOGW("mediaserver's remote binder Camera object died");
     notifyCallback(CAMERA_MSG_ERROR, CAMERA_ERROR_SERVER_DIED, /*ext2*/0);
 }
diff --git a/camera/CameraParameters.cpp b/camera/CameraParameters.cpp
index af091f4..78eb4d6 100644
--- a/camera/CameraParameters.cpp
+++ b/camera/CameraParameters.cpp
@@ -456,7 +456,7 @@
 
 void CameraParameters::dump() const
 {
-    ALOGD("dump: mMap.size = %d", mMap.size());
+    ALOGD("dump: mMap.size = %zu", mMap.size());
     for (size_t i = 0; i < mMap.size(); i++) {
         String8 k, v;
         k = mMap.keyAt(i);
@@ -465,7 +465,7 @@
     }
 }
 
-status_t CameraParameters::dump(int fd, const Vector<String16>& args) const
+status_t CameraParameters::dump(int fd, const Vector<String16>& /*args*/) const
 {
     const size_t SIZE = 256;
     char buffer[SIZE];