On Tue, Aug 29, 2017 at 04:28:53PM +0300, Mathias Nyman wrote: > This tight check was originally done to detect pci hotplug removed > hosts as soon as possible. In Mason's case, the parent of the XHCI controller isn't a hotplug port, see this lspci output: https://www.spinics.net/lists/linux-usb/msg160010.html Please check is_hotplug_bridge in the parent's struct pci_dev before assuming that the XHCI controller was unplugged. Thanks, Lukas
