diff -Naur opa-psm2-PSM2_10.3.58/psm_ep.c opa-psm2-PSM2_10.3.58_new/psm_ep.c
--- opa-psm2-PSM2_10.3.58/psm_ep.c	2018-05-08 03:44:29.000000000 +0800
+++ opa-psm2-PSM2_10.3.58_new/psm_ep.c	2020-07-01 17:09:40.229405374 +0800
@@ -1495,8 +1495,7 @@
 
 	b_new = (char *)devstr;
 	e = b_new + len;
-	strncpy(e, devstring, len - 1);
-	e[len - 1] = '\0';
+	strncpy(e, devstring, len);
 	ee = e + len;
 	i = 0;
 	while (e < ee && *e && i < PTL_MAX_INIT) {