Merge tag 'md-3.5-fixes' of git://neil.brown.name/md

Pull use-after-free RAID1 bugfix from NeilBrown.

* tag 'md-3.5-fixes' of git://neil.brown.name/md:
  md/raid1: fix use-after-free bug in RAID1 data-check code.

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 8c2754f835ef..240ff3125040 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2485,9 +2485,10 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipp
          */
         if (test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) {
                 atomic_set(&r1_bio->remaining, read_targets);
-                for (i = 0; i < conf->raid_disks * 2; i++) {
+                for (i = 0; i < conf->raid_disks * 2 && read_targets; i++) {
                         bio = r1_bio->bios[i];
                         if (bio->bi_end_io == end_sync_read) {
+                                read_targets--;
                                 md_sync_acct(bio->bi_bdev, nr_sectors);
                                 generic_make_request(bio);
                         }