From 36ba0c7b86acd9c2ea80a273204d52c21c955471 Mon Sep 17 00:00:00 2001 From: Yu Kuai Date: Fri, 10 Mar 2023 15:38:55 +0800 Subject: [PATCH] md/raid10: fix memleak of md thread [ 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 Signed-off-by: Song Liu Link: https://lore.kernel.org/r/20230310073855.1337560-7-yukuai1@huaweicloud.com Signed-off-by: Sasha Levin --- 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 c861db5..006c28e 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -4148,6 +4148,9 @@ 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; @@ -4160,9 +4163,6 @@ static int raid10_run(struct mddev *mddev) } } - mddev->thread = conf->thread; - conf->thread = NULL; - if (mddev->queue) { blk_queue_max_write_zeroes_sectors(mddev->queue, 0); blk_queue_io_min(mddev->queue, mddev->chunk_sectors << 9); -- 2.7.4