bcache: fix memory corruption in init error path (c9a78332) · Commits · 戴 / test

drivers/md/bcache/super.c

+8 −3

Original line number	Diff line number	Diff line
		@@ -1356,8 +1356,11 @@ static void cache_set_free(struct closure *cl)
		bch_journal_free(c);

		for_each_cache(ca, c, i)
		if (ca)
		if (ca) {
		ca->set = NULL;
		c->cache[ca->sb.nr_this_dev] = NULL;
		kobject_put(&ca->kobj);
		}

		bch_bset_sort_state_free(&c->sort);
		free_pages((unsigned long) c->uuids, ilog2(bucket_pages(c)));
		@@ -1794,8 +1797,10 @@ void bch_cache_release(struct kobject *kobj)
		struct cache *ca = container_of(kobj, struct cache, kobj);
		unsigned i;

		if (ca->set)
		if (ca->set) {
		BUG_ON(ca->set->cache[ca->sb.nr_this_dev] != ca);
		ca->set->cache[ca->sb.nr_this_dev] = NULL;
		}

		bio_split_pool_free(&ca->bio_split_hook);