Jan Kara 90f16fddcc block: Make del_gendisk() safer for disks without queues
Commit 165a5e22fafb "block: Move bdi_unregister() to del_gendisk()"
added disk->queue dereference to del_gendisk(). Although del_gendisk()
is not supposed to be called without disk->queue valid and
blk_unregister_queue() warns in that case, this change will make it oops
instead. Return to the old more robust behavior of just warning when
del_gendisk() gets called for gendisk with disk->queue being NULL.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Tested-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-08 10:55:17 -07:00
..
2016-10-28 08:45:17 -06:00
2017-02-27 18:43:47 -08:00
2017-03-02 13:53:13 -08:00
2017-03-02 13:53:13 -08:00
2017-02-08 13:43:06 -07:00