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authorAlan Stern <stern@rowland.harvard.edu>2012-04-03 15:24:43 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-09 15:43:21 -0700
commitb446b96fd11b69b7c4ecd47d869cff9094fd8802 (patch)
tree9d8720826697457add5c6674428f64c0f21a1cc1 /drivers/usb/host/uhci-hub.c
parenta448e4dc25303fe551e4dafe16c8c7c34f1b9d82 (diff)
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>
Diffstat (limited to 'drivers/usb/host/uhci-hub.c')
-rw-r--r--drivers/usb/host/uhci-hub.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c
index 045cde4cbc3d..768d54295a20 100644
--- a/drivers/usb/host/uhci-hub.c
+++ b/drivers/usb/host/uhci-hub.c
@@ -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: