1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c
index 7b66b9fca29d..18793c137278 100644
--- a/drivers/md/faulty.c
+++ b/drivers/md/faulty.c
@@ -301,7 +301,7 @@ static int run(mddev_t *mddev)
         list_for_each_entry(rdev, &mddev->disks, same_set)
                 conf->rdev = rdev;
 
-        mddev->array_sectors = mddev->size * 2;
+        mddev->array_sectors = mddev->dev_sectors;
         mddev->private = conf;
 
         reconfig(mddev, mddev->layout, -1);