kobject_del() must not be called if kobject_add() has not been called. Hence only unregister sysfs when registration succeeded. Signed-off-by: Liu Shixin <liushixin2@xxxxxxxxxx> --- block/blk-mq-sysfs.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/block/blk-mq-sysfs.c b/block/blk-mq-sysfs.c index 93997d297d42..63f2df2500d9 100644 --- a/block/blk-mq-sysfs.c +++ b/block/blk-mq-sysfs.c @@ -279,6 +279,8 @@ void blk_mq_sysfs_unregister(struct gendisk *disk) unsigned long i; lockdep_assert_held(&q->sysfs_dir_lock); + if (!q->mq_sysfs_init_done) + return; queue_for_each_hw_ctx(q, hctx, i) blk_mq_unregister_hctx(hctx); -- 2.25.1
