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Commit b446b96f authored by Alan Stern's avatar Alan Stern Committed by Greg Kroah-Hartman
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UHCI: hub_status_data should indicate if ports are resuming 



This patch (as1538) causes uhci_hub_status_data() to return a nonzero
value when any port is undergoing a resume transition while the root
hub is suspended.  This will allow usbcore to handle races between
root-hub suspend and port wakeup.

Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a448e4dc

drivers/usb/host/uhci-hub.c

+3 −2
Original line number Diff line number Diff line
@@ -196,11 +196,12 @@ static int uhci_hub_status_data(struct usb_hcd *hcd, char *buf) 
	status = get_hub_status_data(uhci, buf);



	switch (uhci->rh_state) {

	    case UHCI_RH_SUSPENDING:

	    case UHCI_RH_SUSPENDED:

		/* if port change, ask to be resumed */

		if (status || uhci->resuming_ports)

		if (status || uhci->resuming_ports) {

			status = 1;

			usb_hcd_resume_root_hub(hcd);

		}

		break;



	    case UHCI_RH_AUTO_STOPPED: