From c7ed95cb5565f0cfccea4b49c26657a299c230dd Mon Sep 17 00:00:00 2001
From: Stefan Ginsberg <stefanginsberg@gmail.com>
Date: Thu, 17 Jul 2008 14:43:36 +0000
Subject: [PATCH] - Patch by Cameron Gutman   aicommander <at> gmail <dot> com
 - Don't release the device spinlock twice if KeSynchronizeExecution returns
 false See issue #3520 for more details.

svn path=/trunk/; revision=34564
---
 reactos/drivers/storage/scsiport/scsiport.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/reactos/drivers/storage/scsiport/scsiport.c b/reactos/drivers/storage/scsiport/scsiport.c
index 69371475e74..e7296e36c06 100644
--- a/reactos/drivers/storage/scsiport/scsiport.c
+++ b/reactos/drivers/storage/scsiport/scsiport.c
@@ -2894,8 +2894,12 @@ ScsiPortStartIo(IN PDEVICE_OBJECT DeviceObject,
 
         IoCompleteRequest(Irp, IO_NO_INCREMENT);
     }
+    else
+    {
+        /* Release the spinlock only */
+        KeReleaseSpinLockFromDpcLevel(&DeviceExtension->SpinLock);
+    }
 
-    KeReleaseSpinLockFromDpcLevel(&DeviceExtension->SpinLock);
 
     DPRINT("ScsiPortStartIo() done\n");
 }