USB: add missing delay during remote wakeup

[safe/jmp/linux-2.6] / drivers / usb / host / ehci-hcd.c

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 5859522..1ec3857 100644 (file)
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -787,9 +787,10 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)
 
                        /* start 20 msec resume signaling from this port,
                         * and make khubd collect PORT_STAT_C_SUSPEND to
-                        * stop that signaling.
+                        * stop that signaling.  Use 5 ms extra for safety,
+                        * like usb_port_resume() does.
                         */
-                       ehci->reset_done [i] = jiffies + msecs_to_jiffies (20);
+                       ehci->reset_done[i] = jiffies + msecs_to_jiffies(25);
                        ehci_dbg (ehci, "port %d remote wakeup\n", i + 1);
                        mod_timer(&hcd->rh_timer, ehci->reset_done[i]);
                }