Merge "Parcel: Avoid NPE in finalization"

am: b085deece9

Change-Id: I646baf55627a3874a10775846458af5f1dcd5d8c

core/java/android/os/ParcelFileDescriptor.java

@@ -737,7 +737,9 @@ public class ParcelFileDescriptor implements Parcelable, Closeable {
     private void closeWithStatus(int status, String msg) {
         if (mClosed) return;
         mClosed = true;
-        mGuard.close();
+        if (mGuard != null) {
+            mGuard.close();
+        }
         // Status MUST be sent before closing actual descriptor
         writeCommStatusAndClose(status, msg);
         IoUtils.closeQuietly(mFd);