1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 7fbb60883280..6c10f28bc25e 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -284,7 +284,8 @@ static int raid1_end_read_request(struct bio *bio, unsigned int bytes_done, int
                  * user-side. So if something waits for IO, then it will
                  * wait for the 'master' bio.
                  */
-                set_bit(R1BIO_Uptodate, &r1_bio->state);
+                if (uptodate)
+                        set_bit(R1BIO_Uptodate, &r1_bio->state);
 
                 raid_end_bio_io(r1_bio);
         } else {