Ming Lei 18d78171c0 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>
2021-12-02 08:20:49 -07:00
..
2021-11-29 06:41:29 -07:00
2021-08-18 07:21:12 -06:00
2021-11-29 06:41:29 -07:00
2021-06-17 15:51:20 +02:00
2020-03-17 20:55:21 +01:00
2021-09-14 00:22:15 -04:00
2021-10-18 06:17:01 -06:00
2021-11-09 11:16:20 -08:00
2021-10-18 06:17:35 -06:00
2021-11-29 06:34:50 -07:00