From: Hannes Reinecke <hare@xxxxxxxx> When a device is probed asynchronously del_gendisk() might be called before the async probing was run, causing del_gendisk() to crash due to uninitialized sysfs objects. Signed-off-by: Hannes Reinecke <hare@xxxxxxxx> --- block/genhd.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/block/genhd.c b/block/genhd.c index c2223f1..cc40d95 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -697,6 +697,9 @@ void del_gendisk(struct gendisk *disk) struct disk_part_iter piter; struct hd_struct *part; + if (!(disk->flags & GENHD_FL_UP)) + return; + blk_integrity_del(disk); disk_del_events(disk); -- 1.8.5.6
