1 files changed, 3 insertions, 2 deletions

diff --git a/fs/direct-io.c b/fs/direct-io.c
index 1782023bd68a..0e04142d5962 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -544,6 +544,7 @@ static inline int dio_bio_reap(struct dio *dio, struct dio_submit *sdio)
  */
 static int sb_init_dio_done_wq(struct super_block *sb)
 {
+        struct workqueue_struct *old;
         struct workqueue_struct *wq = alloc_workqueue("dio/%s",
                                                       WQ_MEM_RECLAIM, 0,
                                                       sb->s_id);
@@ -552,9 +553,9 @@ static int sb_init_dio_done_wq(struct super_block *sb)
         /*
          * This has to be atomic as more DIOs can race to create the workqueue
          */
-        cmpxchg(&sb->s_dio_done_wq, NULL, wq);
+        old = cmpxchg(&sb->s_dio_done_wq, NULL, wq);
         /* Someone created workqueue before us? Free ours... */
-        if (wq != sb->s_dio_done_wq)
+        if (old)
                 destroy_workqueue(wq);
         return 0;
 }