[weiden] 18640: fix r18639 the right way: don't check a - possibly random - pointer supplied by the caller, also correctly clear the owner SID pointer

fix r18639 the right way: don't check a - possibly random - pointer
supplied by the caller, also correctly clear the owner SID pointer
Modified: trunk/reactos/lib/advapi32/sec/misc.c
  _____

Modified: trunk/reactos/lib/advapi32/sec/misc.c
--- trunk/reactos/lib/advapi32/sec/misc.c	2005-10-20 17:48:19 UTC
(rev 18639)
+++ trunk/reactos/lib/advapi32/sec/misc.c	2005-10-20 17:59:00 UTC
(rev 18640)
@@ -1200,10 +1200,10 @@

if ((SecurityInfo & OWNER_SECURITY_INFORMATION) &&
             ppsidOwner != NULL)
         {
-            ppsidOwner = NULL;
+            *ppsidOwner = NULL;
         }
         if ((SecurityInfo & GROUP_SECURITY_INFORMATION) &&
-           (ppsidGroup) && (*ppsidGroup)) 
+            ppsidGroup != NULL)
         {
             *ppsidGroup = NULL;
         }