1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 8ea208847a6d..b2c00ce602b1 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -4517,6 +4517,8 @@ static int add_new_disk(mddev_t * mddev, mdu_disk_info_t *info)
                 clear_bit(In_sync, &rdev->flags); /* just to be sure */
                 if (info->state & (1<<MD_DISK_WRITEMOSTLY))
                         set_bit(WriteMostly, &rdev->flags);
+                else
+                        clear_bit(WriteMostly, &rdev->flags);
 
                 rdev->raid_disk = -1;
                 err = bind_rdev_to_array(rdev, mddev);