vfs: rename: move d_move() up

Move the d_move() in vfs_rename_dir() up, similarly to how it's done in
vfs_rename_other().  The next patch will consolidate these two functions
and this is the only structural difference between them.

I'm not sure if doing the d_move() after the dput is even valid.  But there
may be a logical explanation for that.  But moving the d_move() before the
dput() (and the mutex_unlock()) should definitely not hurt.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: J. Bruce Fields <bfields@redhat.com>

fs/namei.c

@@ -4045,13 +4045,12 @@ static int vfs_rename_dir(struct inode *old_dir, struct dentry *old_dentry,
 		target->i_flags |= S_DEAD;
 		dont_mount(new_dentry);
 	}
+	if (!(old_dir->i_sb->s_type->fs_flags & FS_RENAME_DOES_D_MOVE))
+		d_move(old_dentry, new_dentry);
 out:
 	if (target)
 		mutex_unlock(&target->i_mutex);
 	dput(new_dentry);
-	if (!error)
-		if (!(old_dir->i_sb->s_type->fs_flags & FS_RENAME_DOES_D_MOVE))
-			d_move(old_dentry,new_dentry);
 	return error;
 }