transport: simplify duplicating a substring in transport_get() using xmemdupz()

diff --git a/streaming.c b/streaming.c
index d7c9f32f0ce98112ddd4d4a8499b227b181e09e6..2ff036a0fa6c8e7b013d061d16baf33045305950 100644 (file)
--- a/streaming.c
+++ b/streaming.c
@@ -152,8 +152,10 @@ struct git_istream *open_istream(const unsigned char *sha1,
        if (filter) {
                /* Add "&& !is_null_stream_filter(filter)" for performance */
                struct git_istream *nst = attach_stream_filter(st, filter);
-               if (!nst)
+               if (!nst) {
                        close_istream(st);
+                       return NULL;
+               }
                st = nst;
        }