diff options
Diffstat (limited to 'drivers/md/raid1.c')
| -rw-r--r-- | drivers/md/raid1.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 6ea4f2679b78..0466ee2453b4 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -3129,6 +3129,13 @@ static int raid1_run(struct mddev *mddev) !test_bit(In_sync, &conf->mirrors[i].rdev->flags) || test_bit(Faulty, &conf->mirrors[i].rdev->flags)) mddev->degraded++; + /* + * RAID1 needs at least one disk in active + */ + if (conf->raid_disks - mddev->degraded < 1) { + ret = -EINVAL; + goto abort; + } if (conf->raid_disks - mddev->degraded == 1) mddev->recovery_cp = MaxSector; @@ -3162,8 +3169,12 @@ static int raid1_run(struct mddev *mddev) ret = md_integrity_register(mddev); if (ret) { md_unregister_thread(&mddev->thread); - raid1_free(mddev, conf); + goto abort; } + return 0; + +abort: + raid1_free(mddev, conf); return ret; } |