diff --git a/reachable.c b/reachable.c
index 00f289f2f470c0f4b95e0fcac043aa2e054d1ce6..b515fa2de332cc570a8a32861bd8d6491b61133e 100644 (file)
--- a/reachable.c
+++ b/reachable.c
{
struct object *obj = &blob->object;
+ if (!blob)
+ die("bad blob object");
if (obj->flags & SEEN)
return;
obj->flags |= SEEN;
struct name_entry entry;
struct name_path me;
+ if (!tree)
+ die("bad tree object");
if (obj->flags & SEEN)
return;
obj->flags |= SEEN;
if (parse_tree(tree) < 0)
die("bad tree object %s", sha1_to_hex(obj->sha1));
- name = xstrdup(name);
add_object(obj, p, path, name);
me.up = path;
me.elem = name;
if (parse_tag(tag) < 0)
die("bad tag object %s", sha1_to_hex(obj->sha1));
- add_object(tag->tagged, p, NULL, name);
+ if (tag->tagged)
+ add_object(tag->tagged, p, NULL, name);
}
static void walk_commit_list(struct rev_info *revs)
@@ -150,7 +154,8 @@ 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)
* Set up the revision walk - this will move all commits
* from the pending list to the commit walking list.
*/
- prepare_revision_walk(revs);
+ if (prepare_revision_walk(revs))
+ die("revision walk setup failed");
walk_commit_list(revs);
}