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-rw-r--r--block/blk-sysfs.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 73f36beff5cd..8653d710b39e 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -387,16 +387,21 @@ struct kobj_type blk_queue_ktype = {
387int blk_register_queue(struct gendisk *disk) 387int blk_register_queue(struct gendisk *disk)
388{ 388{
389 int ret; 389 int ret;
390 struct device *dev = disk_to_dev(disk);
390 391
391 struct request_queue *q = disk->queue; 392 struct request_queue *q = disk->queue;
392 393
393 if (WARN_ON(!q)) 394 if (WARN_ON(!q))
394 return -ENXIO; 395 return -ENXIO;
395 396
397 ret = blk_trace_init_sysfs(dev);
398 if (ret)
399 return ret;
400
396 if (!q->request_fn) 401 if (!q->request_fn)
397 return 0; 402 return 0;
398 403
399 ret = kobject_add(&q->kobj, kobject_get(&disk_to_dev(disk)->kobj), 404 ret = kobject_add(&q->kobj, kobject_get(&dev->kobj),
400 "%s", "queue"); 405 "%s", "queue");
401 if (ret < 0) 406 if (ret < 0)
402 return ret; 407 return ret;