From 9f3cbac23f0200b43212798009c5acbd038bb1e3 Mon Sep 17 00:00:00 2001
From: Pierre Schweitzer <pierre@reactos.org>
Date: Sat, 15 Jul 2017 07:48:47 +0000
Subject: [PATCH] [SHELL32] In case a FSD doesn't support directory changes
 notifications, don't try to requeue a notification each time it returns 0
 data. Just quit instead.

CORE-13549

svn path=/trunk/; revision=75349
---
 reactos/dll/win32/shell32/wine/changenotify.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/reactos/dll/win32/shell32/wine/changenotify.c b/reactos/dll/win32/shell32/wine/changenotify.c
index 7846497184a..e75fb7cf234 100644
--- a/reactos/dll/win32/shell32/wine/changenotify.c
+++ b/reactos/dll/win32/shell32/wine/changenotify.c
@@ -735,6 +735,15 @@ _NotificationCompletion(DWORD dwErrorCode, // completion code
     {
         InterlockedIncrement(&item->pParent->wQueuedCount);
     }
+
+    /* If the FSD doesn't support directory change notifications, there's no
+     * no need to retry and requeue notification
+     */
+    if (dwErrorCode == ERROR_INVALID_FUNCTION)
+    {
+        WARN("Directory watching not supported\n");
+        goto quit;
+    }
 #endif
 
     /* This likely means overflow, so force whole directory refresh. */