[PATCH] usbcore: fixes for hub_port_resume

This patch (as731) makes a couple of small fixes to the hub_port_resume
routine:

	Don't return status >= 0 when an error occurs;

	Clear the port-change-suspend status indicator after
	resuming a device.

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

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 41531bb..26c8cb5 100644 (file)
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1882,7 +1882,12 @@ hub_port_resume(struct usb_hub *hub, int port1, struct usb_device *udev)
                        dev_dbg(hub->intfdev,
                                "port %d status %04x.%04x after resume, %d\n",
                                port1, portchange, devstatus, status);
+                       if (status >= 0)
+                               status = -ENODEV;
                } else {
+                       if (portchange & USB_PORT_STAT_C_SUSPEND)
+                               clear_port_feature(hub->hdev, port1,
+                                               USB_PORT_FEAT_C_SUSPEND);
                        /* TRSMRCY = 10 msec */
                        msleep(10);
                        if (udev)