fix double free found by xcode analysis

diff --git a/tools/u2spewfoo/u2spewfoo.cc b/tools/u2spewfoo/u2spewfoo.cc
index c53b4e4a4ea5f61d03578dfb4f179078ef8645d4..af1bfe65ade600d0ffeb51b8381d94c781a2cb08 100644 (file)
--- a/tools/u2spewfoo/u2spewfoo.cc
+++ b/tools/u2spewfoo/u2spewfoo.cc
@@ -141,6 +141,7 @@ static int get_record(u2iterator *it, u2record *record) {
     {
         puts("get_record: (2) Failed to allocate memory.");
         free(record->data);
+        record->data = nullptr;
         return FAILURE;
     }