reachable.c::add_one_tree: handle NULL from lookup_tree

diff --git a/reachable.c b/reachable.c
index 6383401e2dd6bef3251a105ac136312dfdcdeb3c..ddf39e556b964055419dfd92171f8277a7f7f0d9 100644 (file)
--- a/reachable.c
+++ b/reachable.c
@@ -150,7 +150,8 @@ static int add_one_reflog(const char *path, const unsigned char *sha1, int flag,
 static void add_one_tree(const unsigned char *sha1, struct rev_info *revs)
 {
        struct tree *tree = lookup_tree(sha1);
-       add_pending_object(revs, &tree->object, "");
+       if (tree)
+               add_pending_object(revs, &tree->object, "");
 }
 
 static void add_cache_tree(struct cache_tree *it, struct rev_info *revs)