diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 342ba86c6e4f53f20ede7ba6cc2a81c5cb0800ca..68f1ded81ae0b98ec3cf2c604aac50a66ced3171 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -434,6 +434,7 @@ struct bcache_device {
 
 	/* If nonzero, we're detaching/unregistering from cache set */
 	atomic_t		detaching;
+	int			flush_done;
 
 	uint64_t		nr_stripes;
 	unsigned		stripe_size_bits;
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 728fdc673f31bdf2c3837d62ba82b1ec9903aef0..7a1dcdb2536eaa66e66a1876178262d18064b9c6 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -706,7 +706,8 @@ static void bcache_device_detach(struct bcache_device *d)
 		atomic_set(&d->detaching, 0);
 	}
 
-	bcache_device_unlink(d);
+	if (!d->flush_done)
+		bcache_device_unlink(d);
 
 	d->c->devices[d->id] = NULL;
 	closure_put(&d->c->caching);
@@ -1055,6 +1056,14 @@ static void cached_dev_flush(struct closure *cl)
 	struct cached_dev *dc = container_of(cl, struct cached_dev, disk.cl);
 	struct bcache_device *d = &dc->disk;
 
+	mutex_lock(&bch_register_lock);
+	d->flush_done = 1;
+
+	if (d->c)
+		bcache_device_unlink(d);
+
+	mutex_unlock(&bch_register_lock);
+
 	bch_cache_accounting_destroy(&dc->accounting);
 	kobject_del(&d->kobj);