[reactos] 01/03: [SHELL32] Abort change notifications on a nullptr CORE-15703

[Mark Jansen]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=d7663912315f691d29a14…

commit d7663912315f691d29a14e507380c4e7feeacfdf
Author:     Mark Jansen <mark.jansen(a)reactos.org>
AuthorDate: Sat Feb 16 18:35:08 2019 +0100
Commit:     Mark Jansen <mark.jansen(a)reactos.org>
CommitDate: Mon Feb 18 23:00:31 2019 +0100

    [SHELL32] Abort change notifications on a nullptr
    CORE-15703
---
 dll/win32/shell32/wine/changenotify.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/dll/win32/shell32/wine/changenotify.c
b/dll/win32/shell32/wine/changenotify.c
index 05c7284a87..1873f4a487 100644
--- a/dll/win32/shell32/wine/changenotify.c
+++ b/dll/win32/shell32/wine/changenotify.c
@@ -730,6 +730,12 @@ _NotificationCompletion(DWORD dwErrorCode, // completion code
         return;
     }
 
+    if (!item)
+    {
+        ERR("item == NULL\n");
+        return;
+    }
+
 #endif
 
     /* This likely means overflow, so force whole directory refresh. */