diff options
| author | Zhiqiang Liu <liuzhiqiang26@huawei.com> | 2019-12-10 05:42:25 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-09 12:17:52 +0300 |
| commit | 34ab847d906944ecd1976ad6f49870563bb0b322 (patch) | |
| tree | c429832af66abb3914fd94ac9314a962b51379aa /drivers/md | |
| parent | f42504ab0aec92b757468bb3cf4fa345d6ff822d (diff) | |
| download | linux-34ab847d906944ecd1976ad6f49870563bb0b322.tar.xz | |
md: raid1: check rdev before reference in raid1_sync_request func
[ Upstream commit 028288df635f5a9addd48ac4677b720192747944 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/raid1.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index f46ac9db9edb..0a9d623b13c2 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -2749,7 +2749,7 @@ 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); |