| commit | 18d78171c061889a9a43152f60d6a27a10fc7656 | [log] [tgz] |
|---|---|---|
| author | Ming Lei <ming.lei@redhat.com> | Thu Dec 02 17:07:16 2021 +0800 |
| committer | Jens Axboe <axboe@kernel.dk> | Thu Dec 02 08:20:49 2021 -0700 |
| tree | 05c4db7fc4b7b64cdda8eaca0ecf447afe13e97d | |
| parent | 8a7518931baa8ea023700987f3db31cb0a80610b [diff] |
blk-mq: check q->poll_stat in queue_poll_stat_show
Without checking q->poll_stat in queue_poll_stat_show(), kernel panic
may be caused if q->poll_stat isn't allocated.
Fixes: 48b5c1fbcd8c ("block: only allocate poll_stats if there's a user of them")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20211202090716.3292244-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>