diff --git a/reactos/win32ss/printing/monitors/localmon/main.c b/reactos/win32ss/printing/monitors/localmon/main.c
index 336a03a1740..66e127f8030 100644
--- a/reactos/win32ss/printing/monitors/localmon/main.c
+++ b/reactos/win32ss/printing/monitors/localmon/main.c
@@ -223,6 +223,7 @@ InitializePrintMonitor2(PMONITORINIT pMonitorInit, PHANDLE phMonitor)
         if (!cchPortName || _IsNEPort(pPort->pwszPortName))
         {
             DllFreeSplMem(pPort);
+            pPort = NULL;
             continue;
         }
 
diff --git a/reactos/win32ss/printing/monitors/localmon/ports.c b/reactos/win32ss/printing/monitors/localmon/ports.c
index a56b5fd69bd..ab146e3de27 100644
--- a/reactos/win32ss/printing/monitors/localmon/ports.c
+++ b/reactos/win32ss/printing/monitors/localmon/ports.c
@@ -541,8 +541,8 @@ LocalmonClosePort(HANDLE hPort)
     {
         EnterCriticalSection(&pPort->pLocalmon->Section);
         RemoveEntryList(&pPort->Entry);
-        DllFreeSplMem(pPort);
         LeaveCriticalSection(&pPort->pLocalmon->Section);
+        DllFreeSplMem(pPort);
     }
 
     SetLastError(ERROR_SUCCESS);