From da98481109651c7f6383f06bcd715338e9cc2c79 Mon Sep 17 00:00:00 2001
From: Aleksey Bragin <aleksey@reactos.org>
Date: Mon, 15 Jun 2009 13:30:50 +0000
Subject: [PATCH] - Fix NULL pointer access in an error branch inside
 hub_clear_port_feature_completion(). Thanks to Christoph for testing.

svn path=/trunk/; revision=41415
---
 reactos/drivers/usb/nt4compat/usbdriver/hub.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/reactos/drivers/usb/nt4compat/usbdriver/hub.c b/reactos/drivers/usb/nt4compat/usbdriver/hub.c
index 161eb820304..9c3436db3a9 100644
--- a/reactos/drivers/usb/nt4compat/usbdriver/hub.c
+++ b/reactos/drivers/usb/nt4compat/usbdriver/hub.c
@@ -762,10 +762,15 @@ hub_clear_port_feature_completion(PURB purb, PVOID context)
                 //
                 // do not think the device is workable, no requests to it any more.
                 // including the int polling
-                //
-                // usb_free_mem( purb );
-                //
-                goto LBL_SCAN_PORT_STAT;
+
+                if (purb)
+                    usb_free_mem(purb);
+
+                if (port_idx)
+                    hub_check_reset_port_status(pdev, port_idx);
+
+                //reinitialize the int request, here to reduce some uncertainty of concurrency
+                hub_start_int_request(pdev);
             }
         }
         return;