read-cache.c: free cache entry when refreshing fails

This fixes a memory leak when building the cache entries as
refresh_cache_entry may decide to return NULL, but it does not
free the cache entry structure which was passed in as an argument.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/read-cache.c b/read-cache.c
index ee07cd610ae5efebb0ad2bd233ab380a6d605f83..565546db509c01a6b9ecb03d46ec6ff4182a771a 100644 (file)
--- a/read-cache.c
+++ b/read-cache.c
@@ -701,7 +701,7 @@ struct cache_entry *make_cache_entry(unsigned int mode,
                unsigned int refresh_options)
 {
        int size, len;
-       struct cache_entry *ce;
+       struct cache_entry *ce, *ret;
 
        if (!verify_path(path)) {
                error("Invalid path '%s'", path);
@@ -718,7 +718,13 @@ struct cache_entry *make_cache_entry(unsigned int mode,
        ce->ce_namelen = len;
        ce->ce_mode = create_ce_mode(mode);
 
-       return refresh_cache_entry(ce, refresh_options);
+       ret = refresh_cache_entry(ce, refresh_options);
+       if (!ret) {
+               free(ce);
+               return NULL;
+       } else {
+               return ret;
+       }
 }
 
 int ce_same_name(const struct cache_entry *a, const struct cache_entry *b)