diff options
Diffstat (limited to 'block/blk-mq-debugfs.c')
| -rw-r--r-- | block/blk-mq-debugfs.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c index 271f6596435b..2a75bc7401df 100644 --- a/block/blk-mq-debugfs.c +++ b/block/blk-mq-debugfs.c @@ -972,6 +972,14 @@ void blk_mq_debugfs_register_sched_hctx(struct request_queue *q, { struct elevator_type *e = q->elevator->type; + /* + * If the parent debugfs directory has not been created yet, return; + * We will be called again later on with appropriate parent debugfs + * directory from blk_register_queue() + */ + if (!hctx->debugfs_dir) + return; + if (!e->hctx_debugfs_attrs) return; |