diff --git a/media/mtp/MtpDevice.cpp b/media/mtp/MtpDevice.cpp
index 887f0ec..d54ce50 100644
--- a/media/mtp/MtpDevice.cpp
+++ b/media/mtp/MtpDevice.cpp
@@ -430,8 +430,9 @@
         parent = MTP_PARENT_ROOT;
 
     mRequest.setParameter(1, info->mStorageID);
-    mRequest.setParameter(2, info->mParent);
+    mRequest.setParameter(2, parent);
 
+    mData.reset();
     mData.putUInt32(info->mStorageID);
     mData.putUInt16(info->mFormat);
     mData.putUInt16(info->mProtectionStatus);
@@ -807,7 +808,7 @@
     mData.setTransactionID(mRequest.getTransactionID());
     int ret = mData.write(mRequestOut);
     mData.dump();
-    return (ret > 0);
+    return (ret >= 0);
 }
 
 bool MtpDevice::readData() {