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authorZhiqiang Liu <liuzhiqiang26@huawei.com>2019-12-10 10:42:25 +0800
committerSong Liu <songliubraving@fb.com>2019-12-11 10:36:13 -0800
commit028288df635f5a9addd48ac4677b720192747944 (patch)
tree1086f52d3b22212ea32ffbe13d44e6cbbd76e148 /drivers/md
parenta7ede3d16808b8f3915c8572d783530a82b2f027 (diff)
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: Zhiqiang Liu <liuzhiqiang26@huawei.com> Signed-off-by: Song Liu <songliubraving@fb.com>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/raid1.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index a409ab6f30bc..201fd8aec59a 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 && 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);