* \param task Capability selector of the destination task to do the
* lookup in
* \param cap Capability selector to look up in the destination task
- * \return label contains 1 if valid, 0 if invalid
+ * \return label contains >0 if valid, 0 if invalid
*/
L4_INLINE l4_msgtag_t
l4_task_cap_valid(l4_cap_idx_t task, l4_cap_idx_t cap) L4_NOTHROW;