scsi: core: cleanup request queue before releasing gendisk

gendisk instance has to be released after request queue is cleaned up
because bdi is referred from gendisk since commit edb0872f44ec ("block:
move the bdi from the request_queue to the gendisk").

For sd and sr, gendisk can be removed in the release handler(sd_remove/
sr_remove) of sdev->sdev_gendev, which is triggered in device_del(sdev->sdev_gendev)
in __scsi_remove_device(), when the request queue isn't cleaned up yet.

So kernel oops could be triggered when referring bdi via gendisk.

Fix the issue by moving blk_cleanup_queue() into sd_remove() and
sr_remove().

Fixes: edb0872f44ec ("block: move the bdi from the request_queue to the gendisk")
Cc: Christoph Hellwig <hch@lst.de>
Cc: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>

0 files changed, 0 insertions, 0 deletions