# This patch was developed both in-house and from outside. We plan to submit it

# upstream, but do not yet have a target date for doing so

#

# HG changeset patch

# Parent  fdf4097d37ca807fc7f99fc7b0451422e88c9b86

22672457 ibqueryerrors dumps core with invalid port specified

diff -r fdf4097d37ca libibnetdisc/src/ibnetdisc.c

--- a/libibnetdisc/src/ibnetdisc.c	Mon Aug 29 10:50:02 2016 -0700

+++ b/libibnetdisc/src/ibnetdisc.c	Thu Sep 01 16:05:30 2016 -0700

@@ -610,7 +610,11 @@

 ibnd_node_t *ibnd_find_node_dr(ibnd_fabric_t * fabric, char *dr_str)

 {

 	ibnd_port_t *rc = ibnd_find_port_dr(fabric, dr_str);

-	return rc->node;

+	/* Check whether the specified port is found */

+	if (rc == NULL)

+		return NULL;

+	else

+		return rc->node;

 }

 void add_to_nodeguid_hash(ibnd_node_t * node, ibnd_node_t * hash[])

@@ -911,6 +915,8 @@

 	}

 	cur_node = fabric->from_node;

+	if (!cur_node)

+		return NULL;

 	if (str2drpath(&path, dr_str, 0, 0) == -1)

 		return NULL;

@@ -921,6 +927,10 @@

 			continue;

 		if (!cur_node->ports)

 			return NULL;

+		/* check the existence of the port specified in dr path */

+		if (path.p[i] > cur_node->numports ||

+		    cur_node->ports[path.p[i]] == NULL)

+			return NULL;

 		remote_port = cur_node->ports[path.p[i]]->remoteport;

 		if (!remote_port)