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 4.4 08/11] md: raid1: check rdev before reference in raid1_sync_request func
Date: Fri, 20 Dec 2019 09:47:40 -0500 [thread overview]
Message-ID: <20191220144744.10565-8-sashal@kernel.org> (raw)
In-Reply-To: <20191220144744.10565-1-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 abb99515068b1..096f3a2ba5244 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2630,7 +2630,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipp
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->bi_bdev = rdev->bdev;
--
2.20.1
next prev parent reply other threads:[~2019-12-20 14:48 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-20 14:47 [PATCH AUTOSEL 4.4 01/11] PM / devfreq: Don't fail devfreq_dev_release if not in list Sasha Levin
2019-12-20 14:47 ` [PATCH AUTOSEL 4.4 02/11] RDMA/cma: add missed unregister_pernet_subsys in init failure Sasha Levin
2019-12-20 14:47 ` [PATCH AUTOSEL 4.4 03/11] scsi: lpfc: Fix memory leak on lpfc_bsg_write_ebuf_set func Sasha Levin
2019-12-20 14:47 ` [PATCH AUTOSEL 4.4 04/11] scsi: qla2xxx: Don't call qlt_async_event twice Sasha Levin
2019-12-20 14:47 ` [PATCH AUTOSEL 4.4 05/11] scsi: iscsi: qla4xxx: fix double free in probe Sasha Levin
2019-12-20 14:47 ` [PATCH AUTOSEL 4.4 06/11] scsi: libsas: stop discovering if oob mode is disconnected Sasha Levin
2019-12-20 14:47 ` [PATCH AUTOSEL 4.4 07/11] usb: gadget: fix wrong endpoint desc Sasha Levin
2019-12-20 14:47 ` Sasha Levin [this message]
2019-12-20 14:47 ` [PATCH AUTOSEL 4.4 09/11] s390/cpum_sf: Adjust sampling interval to avoid hitting sample limits Sasha Levin
2019-12-20 14:47 ` [PATCH AUTOSEL 4.4 10/11] s390/cpum_sf: Avoid SBD overflow condition in irq handler Sasha Levin
2019-12-20 14:47 ` [PATCH AUTOSEL 4.4 11/11] xen/balloon: fix ballooned page accounting without hotplug enabled Sasha Levin
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