From: Dmitry Torokhov <dmitry.torok...@gmail.com> Date: Tue, 14 Feb 2017 10:23:30 -0800
> PTP core was creating some attributes, such as "period" and "fifo", and the > entire "pins" attribute group, after creating class deevice, which creates > a race for userspace: uevent may arrive before all attributes are created. > > This series of patches switches PTP to use is_visible() to control > visibility of attributes in a group, and device_create_with_groups() to > ensure that attributes are created before we notify userspace of a new > device. Richard, please review.