1 files changed, 2 insertions, 0 deletions

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 8813990304fe..85a668680f82 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -431,6 +431,8 @@ int sysfs_move_dir(struct kobject *kobj, struct kobject *new_parent)
         new_parent_dentry = new_parent ?
                 new_parent->dentry : sysfs_mount->mnt_sb->s_root;
 
+        if (old_parent_dentry->d_inode == new_parent_dentry->d_inode)
+                return 0;       /* nothing to move */
 again:
         mutex_lock(&old_parent_dentry->d_inode->i_mutex);
         if (!mutex_trylock(&new_parent_dentry->d_inode->i_mutex)) {