UHCI: support device_may_wakeup

This patch (as831) adds device_may_wakeup() support to uhci-hcd; it
has been lacking for a long time.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index fecc8c971c17..e0d4c2358b39 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -257,7 +257,9 @@ __acquires(uhci->lock)
         int_enable = USBINTR_RESUME;
         if (remote_wakeup_is_broken(uhci))
                 egsm_enable = 0;
-        if (resume_detect_interrupts_are_broken(uhci) || !egsm_enable)
+        if (resume_detect_interrupts_are_broken(uhci) || !egsm_enable ||
+                        !device_may_wakeup(
+                                &uhci_to_hcd(uhci)->self.root_hub->dev))
                 uhci->working_RD = int_enable = 0;
 
         outw(int_enable, uhci->io_addr + USBINTR);