[cwittich] 36410: fix heap corruption when lpStringToFind is NULL Fix for Coverity error CID: 775.

Author: cwittich
Date: Tue Sep 23 01:55:05 2008
New Revision: 36410
URL: http://svn.reactos.org/svn/reactos?rev=36410&view=rev
Log:
fix heap corruption when lpStringToFind is NULL
Fix for Coverity error CID: 775.
Modified:
    trunk/reactos/dll/win32/kernel32/misc/actctx.c
Modified: trunk/reactos/dll/win32/kernel32/misc/actctx.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32/misc/ac…
==============================================================================
--- trunk/reactos/dll/win32/kernel32/misc/actctx.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/kernel32/misc/actctx.c [iso-8859-1] Tue Sep 23 01:55:05 2008
@@ -30,7 +30,7 @@
     )
 {
     BOOL bRetVal;
-    LPWSTR lpStringToFindW;
+    LPWSTR lpStringToFindW = NULL;
     /* Convert lpStringToFind */
     if (lpStringToFind)
@@ -47,7 +47,8 @@
                                         ReturnedData);
     /* Clean up */
-    RtlFreeHeap(GetProcessHeap(), 0, (LPWSTR*) lpStringToFindW);
+    if (lpStringToFindW)
+        RtlFreeHeap(GetProcessHeap(), 0, (LPWSTR*) lpStringToFindW);
     return bRetVal;
 }