Fix signed to unsigned conversion warning for this test
@@ -85,7 +85,7 @@ static EventGroupHandle_t xSyncEventGroup;
CK_SESSION_HANDLE xGlobalSession;
CK_FUNCTION_LIST_PTR pxGlobalFunctionList;
-#define pkcs11testINVALID_SLOT_ID -1
+#define pkcs11testINVALID_SLOT_ID ( CK_SLOT_ID )-1
extern CK_RV xProvisionDevice( CK_SESSION_HANDLE xSession,
