block, blk-sysfs: Fix an err return path in blk_register_queue()

We do not call blk_trace_remove_sysfs() in err return path
if kobject_add() fails. This path fixes it.

Cc: stable@kernel.org
Signed-off-by: Liu Yuan <tailai.ly@taobao.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 6d735122bc59..5d696adbc4dc 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -508,8 +508,10 @@ int blk_register_queue(struct gendisk *disk)
                 return ret;
 
         ret = kobject_add(&q->kobj, kobject_get(&dev->kobj), "%s", "queue");
-        if (ret < 0)
+        if (ret < 0) {
+                blk_trace_remove_sysfs(dev);
                 return ret;
+        }
 
         kobject_uevent(&q->kobj, KOBJ_ADD);