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Diffstat (limited to 'drivers/md/raid10.c')
-rw-r--r--drivers/md/raid10.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index d6f7978b4449..811427e53126 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1808,6 +1808,7 @@ static int raid10_add_disk(struct mddev *mddev, struct md_rdev *rdev)
first = last = rdev->raid_disk;
if (rdev->saved_raid_disk >= first &&
+ rdev->saved_raid_disk < conf->geo.raid_disks &&
conf->mirrors[rdev->saved_raid_disk].rdev == NULL)
mirror = rdev->saved_raid_disk;
else