From: Johannes Anderwald <johannes.anderwald@reactos.org>
Date: Sat, 12 Feb 2011 18:55:52 +0000 (+0000)
Subject:  - Fix a bug where a spinlock was acquired on not initialized local variable
X-Git-Tag: backups/ros-branch-0_3_13@51035~15
X-Git-Url: https://git.reactos.org/?p=reactos.git;a=commitdiff_plain;h=db2351ec56583dd2222335483a52546a6ccb71d9

 - Fix a bug where a spinlock was acquired on not initialized local variable

svn path=/trunk/; revision=50673
---

diff --git a/reactos/drivers/ksfilter/ks/swenum.c b/reactos/drivers/ksfilter/ks/swenum.c
index 08d5286bd58..8430b64a1f4 100644
--- a/reactos/drivers/ksfilter/ks/swenum.c
+++ b/reactos/drivers/ksfilter/ks/swenum.c
@@ -1156,12 +1156,12 @@ KspBusWorkerRoutine(
     BOOLEAN DoInvalidate = FALSE;
     KIRQL OldLevel;
 
-    /* acquire lock */
-    KeAcquireSpinLock(&BusDeviceExtension->Lock, &OldLevel);
-
     /* get device extension */
     BusDeviceExtension = (PBUS_ENUM_DEVICE_EXTENSION)Parameter;
 
+    /* acquire lock */
+    KeAcquireSpinLock(&BusDeviceExtension->Lock, &OldLevel);
+
     /* get current time */
     KeQuerySystemTime(&Time);