Fix one more error path in udreg. In this case we hit the maximum size

of the udreg cache and get a different error code back.

cmr=v1.7.4:reviewer=rhc

This commit was SVN r30242.

ompi/mca/mpool/udreg/mpool_udreg_module.c

@@ -354,7 +354,7 @@ int mca_mpool_udreg_register(mca_mpool_base_module_t *mpool, void *addr,
 
     if (false == bypass_cache) {
         /* Get a udreg entry for this region */
-        while (UDREG_RC_ERROR_RESOURCE ==
+        while (UDREG_RC_SUCCESS !=
                (urc = UDREG_Register (mpool_udreg->udreg_handle, addr, size, &udreg_entry))) {
             /* try to remove one unused reg and retry */
             if (!mca_mpool_udreg_evict (mpool)) {