ref-filter: add check for negative file size

diff --git a/read-cache.c b/read-cache.c
index d57958233e82df6551fdc890f1238ae65beb8940..f3a848d61c154ec99b4c45d3404380810c18eec1 100644 (file)
--- a/read-cache.c
+++ b/read-cache.c
@@ -2297,8 +2297,8 @@ int read_index_from(struct index_state *istate, const char *path,
        freshen_shared_index(base_path, 0);
        merge_base_index(istate);
        post_read_index_from(istate);
-       free(base_path);
        trace_performance_leave("read cache %s", base_path);
+       free(base_path);
        return ret;
 }