[PATCH] USB: hub:no need to obtain usb device

[Lizhe]

the usb device connected to the port has obtained.
there is no need to obtain it again.

Signed-off-by: Lizhe <sensor1010@xxxxxxx>
---
 drivers/usb/core/hub.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 4b93c0bd1d4b..f37b991fa86a 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -5358,7 +5358,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 	if (udev) {
 		if (hcd->usb_phy && !hdev->parent)
 			usb_phy_notify_disconnect(hcd->usb_phy, udev->speed);
-		usb_disconnect(&port_dev->child);
+		usb_disconnect(&udev);
 	}
 
 	/* We can forget about a "removed" device when there's a physical
-- 
2.17.1