don't crash in Parcel when given a null (and therfore invalid) native_handle_t
diff --git a/Parcel.cpp b/Parcel.cpp
index f40e4bd..785a3c5 100644
--- a/Parcel.cpp
+++ b/Parcel.cpp
@@ -661,7 +661,7 @@
 
 status_t Parcel::writeNativeHandle(const native_handle* handle)
 {
-    if (handle->version != sizeof(native_handle))
+    if (!handle || handle->version != sizeof(native_handle))
         return BAD_TYPE;
 
     status_t err;