blk-mq: Only unregister hctxs for which registration succeeded
authorBart Van Assche <bart.vanassche@sandisk.com>
Wed, 26 Apr 2017 20:47:51 +0000 (13:47 -0700)
committerJens Axboe <axboe@fb.com>
Wed, 26 Apr 2017 21:09:04 +0000 (15:09 -0600)
commit9d984bccfccc888ccab0bd1727f087a6111a5df5
tree3b501e9c6fff0d4888c7c82ab5d6b674d4188af0
parent8bacb71803c7cb353f114c635552870983b88b06
blk-mq: Only unregister hctxs for which registration succeeded

Hctx unregistration involves calling kobject_del(). kobject_del()
must not be called if kobject_add() has not been called. Hence in
the error path only unregister hctxs for which registration succeeded.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Omar Sandoval <osandov@fb.com>
Cc: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
block/blk-mq-sysfs.c