From f0a4043b24a3e993083e4b58d450df665a2ca235 Mon Sep 17 00:00:00 2001
From: Jake Day <jake@ninebysix.com>
Date: Mon, 21 Aug 2017 22:28:27 -0400
Subject: [PATCH] return out of usb_enable_lpm() if bos descriptors are null

---
 kernel/drivers/usb/core/hub.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/drivers/usb/core/hub.c b/kernel/drivers/usb/core/hub.c
index 0881a3e81..e6f050337 100644
--- a/kernel/drivers/usb/core/hub.c
+++ b/kernel/drivers/usb/core/hub.c
@@ -4049,7 +4049,8 @@ 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--;