On Thu, Aug 31, 2023 at 10:13:44PM +0800, Jinjie Ruan wrote: > Since debugfs_create_dir() returns ERR_PTR and never return NULL, So use > IS_ERR() to check it instead of checking NULL. It is preferred that the return value from debugfs functions is _not_ checked. See for example: https://lore.kernel.org/linux-arm-kernel/20180601111004.1670-3-gregkh@xxxxxxxxxxxxxxxxxxx/T/ Thanks. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
