diff --git a/[refs] b/[refs]
index 3bc7bd70caf6..e6d9e2f3ef2c 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d3fec424b23c47686efcf3f2004c3f1c1cee4d9c
+refs/heads/master: 80b16c192e469541263d6bfd9177662ceb632ecc
diff --git a/trunk/drivers/md/dm-crypt.c b/trunk/drivers/md/dm-crypt.c
index ba952a032598..bdc52d6922b7 100644
--- a/trunk/drivers/md/dm-crypt.c
+++ b/trunk/drivers/md/dm-crypt.c
@@ -920,6 +920,8 @@ static void crypt_dtr(struct dm_target *ti)
 {
 	struct crypt_config *cc = (struct crypt_config *) ti->private;
 
+	flush_workqueue(_kcryptd_workqueue);
+
 	bioset_free(cc->bs);
 	mempool_destroy(cc->page_pool);
 	mempool_destroy(cc->io_pool);