paride/pcd: cleanup queues when detection fails
authorJens Axboe <axboe@kernel.dk>
Mon, 18 Mar 2019 14:10:32 +0000 (08:10 -0600)
committerJens Axboe <axboe@kernel.dk>
Mon, 18 Mar 2019 14:10:32 +0000 (08:10 -0600)
commit81b74ac68c28fddb3589ad5d4d5e587baf4bb781
tree79c66628783124bbb51cd4815801080f0fffaa09
parent6ce59025f1182125e75c8d121daf44056b65dd1f
paride/pcd: cleanup queues when detection fails

The driver allocates queues for all the units it potentially
supports. But if we fail to detect any drives, then we fail
loading the module without cleaning up those queues. This is
now evident with the switch to blk-mq, though the bug has
been there forever as far as I can tell.

Also fix cleanup through regular module exit.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
drivers/block/paride/pcd.c