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: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c
index 045cde4..768d542 100644
--- a/drivers/usb/host/uhci-hub.c
+++ b/drivers/usb/host/uhci-hub.c
@@ -196,11 +196,12 @@
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: