block, blk-sysfs: Use the variable directly instead of a function call

In the function blk_register_queue(), var _dev_ is already assigned by
disk_to_dev().So use it directly instead of calling disk_to_dev() again.

Signed-off-by: Liu Yuan <tailai.ly@taobao.com>

Modified by me to delete an empty line in the same function while
in there anyway.

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 261c75c665a..6d735122bc5 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -498,7 +498,6 @@ int blk_register_queue(struct gendisk *disk)
 {
         int ret;
         struct device *dev = disk_to_dev(disk);
-
         struct request_queue *q = disk->queue;
 
         if (WARN_ON(!q))
@@ -521,7 +520,7 @@ int blk_register_queue(struct gendisk *disk)
         if (ret) {
                 kobject_uevent(&q->kobj, KOBJ_REMOVE);
                 kobject_del(&q->kobj);
-                blk_trace_remove_sysfs(disk_to_dev(disk));
+                blk_trace_remove_sysfs(dev);
                 kobject_put(&dev->kobj);
                 return ret;
         }