1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index abb5d382f64d..3b6880dd648d 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -3939,6 +3939,8 @@ static int raid10_run(struct mddev *mddev)
                 set_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
                 mddev->sync_thread = md_register_thread(md_do_sync, mddev,
                                                         "reshape");
+                if (!mddev->sync_thread)
+                        goto out_free_conf;
         }
 
         return 0;
@@ -4670,7 +4672,6 @@ read_more:
         atomic_inc(&r10_bio->remaining);
         read_bio->bi_next = NULL;
         generic_make_request(read_bio);
-        sector_nr += nr_sectors;
         sectors_done += nr_sectors;
         if (sector_nr <= last)
                 goto read_more;