[hpoussin] 20324: Close the key only if we have opened it (it's not the case when the subkey name is empty)

Close the key only if we have opened it (it's not the case when the
subkey name is empty)
Modified: trunk/reactos/lib/setupapi/install.c
  _____

Modified: trunk/reactos/lib/setupapi/install.c
--- trunk/reactos/lib/setupapi/install.c	2005-12-24 17:56:23 UTC
(rev 20323)
+++ trunk/reactos/lib/setupapi/install.c	2005-12-24 23:24:40 UTC
(rev 20324)
@@ -433,10 +433,10 @@

/* and now do it */
         if (!do_reg_operation( hkey, buffer, &context, flags ))
         {
-            RegCloseKey( hkey );
+            if (hkey != root_key) RegCloseKey( hkey );
             return FALSE;
         }
-        RegCloseKey( hkey );
+        if (hkey != root_key) RegCloseKey( hkey );
     }
     return TRUE;
 }