On Thu, Jun 09, 2022 at 03:54:40PM +0200, Rafael J. Wysocki wrote: > From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> > > Instead of walking the list of children of an ACPI device directly > in order to find the child matching a given bus address, use > acpi_find_child_by_adr() for this purpose. ... > if (!adev) > return NULL; Already checked in the below call, IIUC. Hence can be removed. > + return acpi_find_child_by_adr(adev, port->port); -- With Best Regards, Andy Shevchenko