In raid1_sync_request func, rdev should be checked whether it is null
before reference.
Fixes: 06f603851f("md/raid1: avoid reading known bad blocks during resync")
Signed-off-by: Zhiqiang Liu <liuzhiqiang26@xxxxxxxxxx>
---
drivers/md/raid1.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index a409ab6f30bc..0dea35052efe 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2782,7 +2782,7 @@ static sector_t raid1_sync_request(struct mddev *mddev, sector_t sector_nr,
write_targets++;
}
}
- if (bio->bi_end_io) {
+ if (rdev != NULL && bio->bi_end_io) {
atomic_inc(&rdev->nr_pending);
bio->bi_iter.bi_sector = sector_nr + rdev->data_offset;
bio_set_dev(bio, rdev->bdev);
--
2.24.0.windows.2
