Hello Jens, The 1st patch fixes one hang in del_gendisk(). The 2nd patch fixes one race in case that add_disk() fails. Thanks, Ming Ming Lei (2): block: don't quiesce queue for calling elevator_set_none() block: move removing elevator after deleting disk->queue_kobj block/blk-sysfs.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) -- 2.47.0