[greatlrd] 23003: Fixing two user mode crash for menu. Do not try reading from NULL pointer and compare the value. This let me come bit futer with user32_winetest.exe, but we still have some user mode crash with menu.

Author: greatlrd
Date: Mon Jul 10 23:32:24 2006
New Revision: 23003

URL: http://svn.reactos.org/svn/reactos?rev=23003&view=rev
Log:
Fixing two user mode crash for menu. 
Do not try reading from NULL pointer and compare the value. 
This let me come bit futer with user32_winetest.exe, but we still have some user mode
crash with menu. 
  


Modified:
    trunk/reactos/dll/win32/user32/windows/menu.c

Modified: trunk/reactos/dll/win32/user32/windows/menu.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/user32/windows/m…
==============================================================================
--- trunk/reactos/dll/win32/user32/windows/menu.c (original)
+++ trunk/reactos/dll/win32/user32/windows/menu.c Mon Jul 10 23:32:24 2006
@@ -4488,10 +4488,13 @@
       HeapFree(GetProcessHeap(),0, mii.dwTypeData);
     }
     /* Item beginning with a backspace is a help item */
-    if (*lpNewItem == '\b')
-    {
-       mii.fType |= MF_HELP;
-       lpNewItem++;
+	if  (lpNewItem != NULL)
+	{
+		if (*lpNewItem == '\b')
+		{
+			mii.fType |= MF_HELP;
+			lpNewItem++;
+		}
     }
     mii.fMask |= MIIM_TYPE;
     mii.dwTypeData = (LPSTR)lpNewItem;
@@ -4579,14 +4582,18 @@
   }
   else
   {
-    /*if(mii.dwTypeData != NULL)
+    /*
+    if(mii.dwTypeData != NULL)
     {
       HeapFree(GetProcessHeap(),0, mii.dwTypeData);
-    }*/
-    if (*lpNewItem == '\b')
-    {
-       mii.fType |= MF_HELP;
-       lpNewItem++;
+    } */
+    if  (lpNewItem != NULL)
+	{
+		if (*lpNewItem == '\b')
+		{
+			mii.fType |= MF_HELP;
+			lpNewItem++;
+		}
     }
     mii.fMask |= MIIM_TYPE;
     mii.dwTypeData = (LPWSTR)lpNewItem;