lkml.org 
[lkml]   [2020]   [Jan]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4.4 08/59] md: raid1: check rdev before reference in raid1_sync_request func
Date
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 abb99515068b..096f3a2ba524 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


\
 
 \ /
  Last update: 2020-01-11 10:52    [W:0.183 / U:0.472 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site