quartz: Fix some critical section leaks (Valgrind).

dlls/quartz/filesource.c

@@ -333,14 +333,15 @@ static void async_reader_destroy(struct strmbase_filter *iface)
             free(filter->requests);
         }
         CloseHandle(filter->file);
-        filter->sample_cs.DebugInfo->Spare[0] = 0;
-        DeleteCriticalSection(&filter->sample_cs);
         strmbase_source_cleanup(&filter->source);
 
         free(filter->pszFileName);
         FreeMediaType(&filter->mt);
     }
 
+    filter->sample_cs.DebugInfo->Spare[0] = 0;
+    DeleteCriticalSection(&filter->sample_cs);
+
     PostQueuedCompletionStatus(filter->port, 0, 1, NULL);
     WaitForSingleObject(filter->io_thread, INFINITE);
     CloseHandle(filter->io_thread);

dlls/quartz/filtergraph.c

@@ -486,8 +486,9 @@ static ULONG WINAPI FilterGraphInner_Release(IUnknown *iface)
         }
         LeaveCriticalSection(&message_cs);
 
-        This->cs.DebugInfo->Spare[0] = 0;
+        This->event_cs.DebugInfo->Spare[0] = 0;
         DeleteCriticalSection(&This->event_cs);
+        This->cs.DebugInfo->Spare[0] = 0;
 	DeleteCriticalSection(&This->cs);
         free(This);
     }