Commit 028288df authored by Zhiqiang Liu's avatar Zhiqiang Liu Committed by Song Liu
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md: raid1: check rdev before reference in raid1_sync_request func 



In raid1_sync_request func, rdev should be checked before reference.

Signed-off-by: default avatarZhiqiang Liu <liuzhiqiang26@huawei.com>
Signed-off-by: default avatarSong Liu <songliubraving@fb.com>
parent a7ede3d1

drivers/md/raid1.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -2782,7 +2782,7 @@ static sector_t raid1_sync_request(struct mddev *mddev, sector_t sector_nr, 
				write_targets++;

				write_targets++;

			}

			}

		}

		}

		if (bio->bi_end_io) {

		if (rdev && bio->bi_end_io) {

			atomic_inc(&rdev->nr_pending);

			atomic_inc(&rdev->nr_pending);

			bio->bi_iter.bi_sector = sector_nr + rdev->data_offset;

			bio->bi_iter.bi_sector = sector_nr + rdev->data_offset;

			bio_set_dev(bio, rdev->bdev);

			bio_set_dev(bio, rdev->bdev);

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