---

yaml --- r: 299143 b: refs/heads/master c: 879d38e h: refs/heads/master i: 299141: 6bbf965 299139: bf77007 299135: 140c524 v: v3
git-mirror · Apr 9, 2012 · 02f2dfd · 02f2dfd
1 parent c717129
commit 02f2dfd
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Showing 2 changed files with 13 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c5d703dcc776cb542b41665f2b7e2ba054efb4a7
+refs/heads/master: 879d38e6bc36d73b0ac40ec9b0d839fda9fa8b1a
diff --git a/trunk/drivers/usb/core/hcd.c b/trunk/drivers/usb/core/hcd.c
@@ -1978,6 +1978,18 @@ int hcd_bus_suspend(struct usb_device *rhdev, pm_message_t msg)
 	if (status == 0) {
 		usb_set_device_state(rhdev, USB_STATE_SUSPENDED);
 		hcd->state = HC_STATE_SUSPENDED;
+
+		/* Did we race with a root-hub wakeup event? */
+		if (rhdev->do_remote_wakeup) {
+			char	buffer[6];
+
+			status = hcd->driver->hub_status_data(hcd, buffer);
+			if (status != 0) {
+				dev_dbg(&rhdev->dev, "suspend raced with wakeup event\n");
+				hcd_bus_resume(rhdev, PMSG_AUTO_RESUME);
+				status = -EBUSY;
+			}
+		}
 	} else {
 		spin_lock_irq(&hcd_root_hub_lock);
 		if (!HCD_DEAD(hcd)) {