usb/hub: send usb warning to user space when get descriptor failed.

BZ: 30607

Notify usb warning when get descriptor failed.

Change-Id: I6f39a03c35abf10b88f2a138b2b9392882429839
Signed-off-by: Wu, Hao <hao.wu@intel.com>
Reviewed-on: http://android.intel.com:8080/49177
Reviewed-by: Zhuang, Jin Can <jin.can.zhuang@intel.com>
Reviewed-by: Tang, Richard <richard.tang@intel.com>
Reviewed-by: Tang, Jianqiang <jianqiang.tang@intel.com>
Reviewed-by: Meng, Zhe <zhe.meng@intel.com>
Tested-by: Meng, Zhe <zhe.meng@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 6b10b5a..038af2a 100644 (file)
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2996,6 +2996,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
                                dev_err(&udev->dev,
                                        "device descriptor read/64, error %d\n",
                                        r);
+                               usb_notify_warning(udev, r);
                                retval = -EMSGSIZE;
                                continue;
                        }