[PATCH] bcache: remove unneeded flush_workqueue

[cgel . zte]

From: ran jianping <ran.jianping@xxxxxxxxxx>

All work currently pending will be done first by calling destroy_workqueue,
so there is no need to flush it explicitly.

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: ran jianping <ran.jianping@xxxxxxxxxx>
---
 drivers/md/bcache/writeback.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 9ee0005874cd..9d0b4140ad8f 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -793,10 +793,8 @@ static int bch_writeback_thread(void *arg)
 		}
 	}
 
-	if (dc->writeback_write_wq) {
-		flush_workqueue(dc->writeback_write_wq);
+	if (dc->writeback_write_wq)
 		destroy_workqueue(dc->writeback_write_wq);
-	}
 	cached_dev_put(dc);
 	wait_for_kthread_stop();
 
-- 
2.25.1