On Thu, Aug 29, 2019 at 01:10:38PM +0300, Sakari Ailus wrote: > The prefix is used for printing purpose before a node, and it also works > as a separator between two nodes. > + /* Is this the root node? */ > + parent = fwnode_get_parent(fwnode); > + if (!parent) > + return ""; > + > + /* Is this 2nd node from the root? */ > + parent = fwnode_get_next_parent(parent); > + if (!parent) Can we theoretically have a case when we got parent != NULL and thus taken reference, while the 2nd one is NULL and we leak reference here (and in all similar places)? > + return ""; > + > + fwnode_handle_put(parent); -- With Best Regards, Andy Shevchenko