diff --git a/block/bio.c b/block/bio.c
index 57c2f327225b..d5cd825d6efc 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -747,6 +747,7 @@ void bio_put(struct bio *bio)
 		bio_uninit(bio);
 		cache = per_cpu_ptr(bio->bi_pool->cache, get_cpu());
 		bio->bi_next = cache->free_list;
+		bio->bi_bdev = NULL;
 		cache->free_list = bio;
 		if (++cache->nr > ALLOC_CACHE_MAX + ALLOC_CACHE_SLACK)
 			bio_alloc_cache_prune(cache, ALLOC_CACHE_SLACK);