[dchapyshev] 40555: - Add check on null-pointer. Fixes exception in some cases

Author: dchapyshev
Date: Fri Apr 17 11:12:21 2009
New Revision: 40555

URL: http://svn.reactos.org/svn/reactos?rev=40555&view=rev
Log:
- Add check on null-pointer. Fixes exception in some cases

Modified:
    trunk/reactos/lib/rtl/critical.c

Modified: trunk/reactos/lib/rtl/critical.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/lib/rtl/critical.c?rev=4055...
==============================================================================
--- trunk/reactos/lib/rtl/critical.c [iso-8859-1] (original)
+++ trunk/reactos/lib/rtl/critical.c [iso-8859-1] Fri Apr 17 11:12:21 2009
@@ -117,12 +117,15 @@
     DPRINT("Waiting on Critical Section Event: %p %p\n",
             CriticalSection,
             CriticalSection->LockSemaphore);
-    CriticalSection->DebugInfo->EntryCount++;
+
+    if (CriticalSection->DebugInfo)
+        CriticalSection->DebugInfo->EntryCount++;

for (;;) {

/* Increase the number of times we've had contention */
-        CriticalSection->DebugInfo->ContentionCount++;
+        if (CriticalSection->DebugInfo)
+            CriticalSection->DebugInfo->ContentionCount++;

/* Wait on the Event */
         Status = NtWaitForSingleObject(CriticalSection->LockSemaphore,