From e47240fb371b65ff76d3e1176110d288da8bf944 Mon Sep 17 00:00:00 2001
From: Thomas Faber <thomas.faber@reactos.org>
Date: Tue, 5 Mar 2019 22:27:15 +0100
Subject: [PATCH] [USBPORT] Release StateChangeSpinLock before acquiring
 MiniportSpinLock.

Found by Driver Verifier.
---
 drivers/usb/usbport/endpoint.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/usbport/endpoint.c b/drivers/usb/usbport/endpoint.c
index 385206a0c83..c1624ec297f 100644
--- a/drivers/usb/usbport/endpoint.c
+++ b/drivers/usb/usbport/endpoint.c
@@ -1252,6 +1252,7 @@ USBPORT_ReopenPipe(IN PDEVICE_OBJECT FdoDevice,
 
         if (Endpoint->StateLast == USBPORT_ENDPOINT_ACTIVE)
         {
+            KeReleaseSpinLockFromDpcLevel(&Endpoint->StateChangeSpinLock);
             KeAcquireSpinLockAtDpcLevel(&FdoExtension->MiniportSpinLock);
 
             Packet->SetEndpointState(FdoExtension->MiniPortExt,
@@ -1260,8 +1261,11 @@ USBPORT_ReopenPipe(IN PDEVICE_OBJECT FdoDevice,
 
             KeReleaseSpinLockFromDpcLevel(&FdoExtension->MiniportSpinLock);
         }
+        else
+        {
+            KeReleaseSpinLockFromDpcLevel(&Endpoint->StateChangeSpinLock);
+        }
 
-        KeReleaseSpinLockFromDpcLevel(&Endpoint->StateChangeSpinLock);
         KeReleaseSpinLock(&Endpoint->EndpointSpinLock, Endpoint->EndpointOldIrql);
     }