From 07197eb61cfabc153846b1ae9d080a5d6c449d12 Mon Sep 17 00:00:00 2001
From: "Du, Changbin" <changbin.du@intel.com>
Date: Mon, 22 Feb 2016 10:08:36 +0800
Subject: [PATCH] usb: hub: fix panic in usb_reset_and_verify_device
Signed-off-by: Du, Changbin <changbin.du@intel.com>
---
drivers/usb/core/hub.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 350dcd9..045f951 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -5501,8 +5501,10 @@ done:
return 0;
re_enumerate:
- usb_release_bos_descriptor(udev);
- udev->bos = bos;
+ if (udev->bos != bos) {
+ usb_release_bos_descriptor(udev);
+ udev->bos = bos;
+ }
re_enumerate_no_bos:
/* LPM state doesn't matter when we're about to destroy the device. */
hub_port_logical_disconnect(parent_hub, port1);
--
2.5.0