tree e5796d9bb1bdd716b24f7920960482a8f0c18b2b
parent c235fa2f9d90b6f65f75c545e90596545879ca4f
author Hans de Goede <hdegoede@redhat.com> 1368734998 +0200
committer Hans de Goede <hdegoede@redhat.com> 1368735960 +0200

All: ref dev->parent_dev

An app can hold a reference to just a leave device, if then an entire
hub goes away, all removed devices will get there final unref, except for
the one ref-ed by the app. If the app then tries to use parent_dev in anyway
after this, we've a use-after-free bug. This fixes this.

Also remove the lets re-enumerate fix for this from libusb_get_port_path,
I'm not sure what the exact idea behind this fix was, but after this patch
it is no longer needed, and this patch also fixes usage of for example
libusb_get_parent().

Signed-off-by: Hans de Goede <hdegoede@redhat.com>