From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Zhiqiang Liu <liuzhiqiang26@huawei.com>,
Song Liu <songliubraving@fb.com>, Sasha Levin <sashal@kernel.org>,
linux-raid@vger.kernel.org
Subject: [PATCH AUTOSEL 4.14 13/19] md: raid1: check rdev before reference in raid1_sync_request func
Date: Fri, 20 Dec 2019 09:37:34 -0500 [thread overview]
Message-ID: <20191220143741.10220-13-sashal@kernel.org> (raw)
In-Reply-To: <20191220143741.10220-1-sashal@kernel.org>
From: Zhiqiang Liu <liuzhiqiang26@huawei.com>
[ 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>
---
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 f46ac9db9edb2..0a9d623b13c27 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);
--
2.20.1
next prev parent reply other threads:[~2019-12-20 14:38 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-20 14:37 [PATCH AUTOSEL 4.14 01/19] nvme_fc: add module to ops template to allow module references Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 02/19] iio: adc: max9611: Fix too short conversion time delay Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 03/19] PM / devfreq: Don't fail devfreq_dev_release if not in list Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 04/19] RDMA/cma: add missed unregister_pernet_subsys in init failure Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 05/19] rxe: correctly calculate iCRC for unaligned payloads Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 06/19] scsi: lpfc: Fix memory leak on lpfc_bsg_write_ebuf_set func Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 07/19] scsi: qla2xxx: Don't call qlt_async_event twice Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 08/19] scsi: iscsi: qla4xxx: fix double free in probe Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 09/19] scsi: libsas: stop discovering if oob mode is disconnected Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 10/19] drm/nouveau: Move the declaration of struct nouveau_conn_atom up a bit Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 11/19] usb: gadget: fix wrong endpoint desc Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 12/19] net: make socket read/write_iter() honor IOCB_NOWAIT Sasha Levin
2019-12-20 14:37 ` Sasha Levin [this message]
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 14/19] s390/cpum_sf: Adjust sampling interval to avoid hitting sample limits Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 15/19] s390/cpum_sf: Avoid SBD overflow condition in irq handler Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 16/19] IB/mlx4: Follow mirror sequence of device add during device removal Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 17/19] xen-blkback: prevent premature module unload Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 18/19] xen/balloon: fix ballooned page accounting without hotplug enabled Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 19/19] PM / hibernate: memory_bm_find_bit(): Tighten node optimisation Sasha Levin
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