diff --git a/media/mtp/MtpDevice.cpp b/media/mtp/MtpDevice.cpp
index d672dff..1df7af9 100644
--- a/media/mtp/MtpDevice.cpp
+++ b/media/mtp/MtpDevice.cpp
@@ -195,7 +195,7 @@
 
 MtpDevice::~MtpDevice() {
     close();
-    for (int i = 0; i < mDeviceProperties.size(); i++)
+    for (unsigned int i = 0; i < mDeviceProperties.size(); i++)
         delete mDeviceProperties[i];
     usb_request_free(mRequestIn1);
     usb_request_free(mRequestIn2);
@@ -253,7 +253,7 @@
             ALOGI("*** FORMAT: %s\n", MtpDebug::getFormatCodeName(format));
             MtpObjectPropertyList* props = getObjectPropsSupported(format);
             if (props) {
-                for (int j = 0; j < props->size(); j++) {
+                for (unsigned int j = 0; j < props->size(); j++) {
                     MtpObjectProperty prop = (*props)[j];
                     MtpProperty* property = getObjectPropDesc(prop, format);
                     if (property) {
diff --git a/media/mtp/MtpServer.cpp b/media/mtp/MtpServer.cpp
index df87db4..0b1f527 100644
--- a/media/mtp/MtpServer.cpp
+++ b/media/mtp/MtpServer.cpp
@@ -20,6 +20,7 @@
 #include <sys/ioctl.h>
 #include <sys/stat.h>
 #include <fcntl.h>
+#include <inttypes.h>
 #include <errno.h>
 #include <sys/stat.h>
 #include <dirent.h>
@@ -124,7 +125,7 @@
 void MtpServer::removeStorage(MtpStorage* storage) {
     Mutex::Autolock autoLock(mMutex);
 
-    for (int i = 0; i < mStorages.size(); i++) {
+    for (unsigned int i = 0; i < mStorages.size(); i++) {
         if (mStorages[i] == storage) {
             mStorages.removeAt(i);
             sendStoreRemoved(storage->getStorageID());
@@ -136,7 +137,7 @@
 MtpStorage* MtpServer::getStorage(MtpStorageID id) {
     if (id == 0)
         return mStorages[0];
-    for (int i = 0; i < mStorages.size(); i++) {
+    for (unsigned int i = 0; i < mStorages.size(); i++) {
         MtpStorage* storage = mStorages[i];
         if (storage->getStorageID() == id)
             return storage;
@@ -1110,7 +1111,7 @@
     }
 
     const char* filePath = (const char *)edit->mPath;
-    ALOGV("receiving partial %s %lld %lld\n", filePath, offset, length);
+    ALOGV("receiving partial %s %lld %" PRIu32 "\n", filePath, offset, length);
 
     // read the header, and possibly some data
     int ret = mData.read(mFD);