From: Yu Kuai <yukuai3@xxxxxxxxxx>
[ Upstream commit f0ddb83da3cbbf8a1f9087a642c448ff52ee9abd ]
In raid10_run(), if setup_conf() succeed and raid10_run() failed before
setting 'mddev->thread', then in the error path 'conf->thread' is not
freed.
Fix the problem by setting 'mddev->thread' right after setup_conf().
Fixes: 43a521238aca ("md-cluster: choose correct label when clustered layout is not supported")
Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
Signed-off-by: Song Liu <song@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230310073855.1337560-7-yukuai1@xxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/md/raid10.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 69650b1ac1484..9fc9198fc5c4f 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -4125,6 +4125,9 @@ static int raid10_run(struct mddev *mddev)
if (!conf)
goto out;
+ mddev->thread = conf->thread;
+ conf->thread = NULL;
+
if (mddev_is_clustered(conf->mddev)) {
int fc, fo;
@@ -4137,9 +4140,6 @@ static int raid10_run(struct mddev *mddev)
}
}
- mddev->thread = conf->thread;
- conf->thread = NULL;
-
if (mddev->queue) {
blk_queue_max_discard_sectors(mddev->queue,
UINT_MAX);
--
2.39.2
