linux-kernel - Re: [PATCH v3] usb: hub: add retry routine after intr URB submit error

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Date:   Tue, 20 Nov 2018 16:12:54 +0100
From:   Oliver Neukum <oneukum@...e.com>
To:     Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        stern@...land.harvard.edu
Cc:     gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org
Subject: Re: [PATCH v3] usb: hub: add retry routine after intr URB submit
 error


> 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?

Sorry, yes, I overlooked that there are two flags.

	Regards
		Oliver