From fbd83f772a3be3a00bae323f6d71a59b26352c57 Mon Sep 17 00:00:00 2001
From: Jake Day <jake@ninebysix.com>
Date: Fri, 2 Feb 2018 11:22:21 -0500
Subject: fix for surface sd card reader


diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index cf7bbcb..826fdb8 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -4047,7 +4047,8 @@ void usb_enable_lpm(struct usb_device *udev)
 	if (!udev || !udev->parent ||
 			udev->speed < USB_SPEED_SUPER ||
 			!udev->lpm_capable ||
-			udev->state < USB_STATE_DEFAULT)
+			udev->state < USB_STATE_DEFAULT ||
+			!udev->bos || !udev->bos->ss_cap)
 		return;
 
 	udev->lpm_disable_count--;