Hi Oliver,
On Tue, 2018-11-20 at 15:57 +0100, Oliver Neukum wrote:
> On Di, 2018-11-20 at 15:34 +0100, Nicolas Saenz Julienne wrote:
> > The hub sends hot-plug events to the host trough it's interrupt
> > URB. The
> > driver takes care of completing the URB and re-submitting it.
> > Completion
> > errors are handled in the hub_event() work, yet submission errors
> > are
> > ignored, rendering the device unresponsive. All further events are
> > lost.
> >
>
> Hi,
>
> almost. There is no point in kicking of an error handling while aq
> reset is underway. You are checking only "quiescing" but not
> "in_reset".
Anytime "in_reset" is set "quiescing" is also set:
static int hub_pre_reset(struct usb_interface *intf)
{
struct usb_hub *hub = usb_get_intfdata(intf);
hub_quiesce(hub, HUB_PRE_RESET); //sets quiesce
hub->in_reset = 1;
hub_pm_barrier_for_all_ports(hub);
return 0;
}
static int hub_post_reset(struct usb_interface *intf)
{
struct usb_hub *hub = usb_get_intfdata(intf);
hub->in_reset = 0;
hub_pm_barrier_for_all_ports(hub);
hub_activate(hub, HUB_POST_RESET); //clears quiesce
return 0;
}
I should be OK isn't it?
Regards,
Nicolas
>
> Regards
> Oliver
>
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