From: SeongJae Park <sjpark@xxxxxxxxx> On Mon, 14 Jun 2021 11:30:12 +0200 <sieberf@xxxxxxxxxx> wrote: > + new_dir = debugfs_create_dir(name, root); > + dbgfs_dirs[dbgfs_nr_ctxs] = new_dir; > > debugfs_create_dir might return ERR_PTR, should this be checked? Greg, the maintainer of debugfs, recommended to just ignore that: https://lore.kernel.org/linux-mm/YB1kZaD%2F7omxXztF@xxxxxxxxx/ Thanks, SeongJae Park