diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 6e72bb6c00f26264c1933bc0dc7977fd71507d22..ba5395fd386d562ac070158fa03666e9197e5ce7 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -807,6 +807,7 @@ int bch_cached_dev_writeback_start(struct cached_dev *dc)
 					      "bcache_writeback");
 	if (IS_ERR(dc->writeback_thread)) {
 		cached_dev_put(dc);
+		destroy_workqueue(dc->writeback_write_wq);
 		return PTR_ERR(dc->writeback_thread);
 	}