From: Vincent Bernat <vincent@bernat.im>
Date: Wed, 9 Jul 2014 06:50:04 +0000 (+0200)
Subject: snmp: avoid deferencing a pointer when it may be NULL
X-Git-Tag: 0.7.10~13
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ba908c4eedaacb72cad1245c557591d326122c57;p=thirdparty%2Flldpd.git

snmp: avoid deferencing a pointer when it may be NULL
---

diff --git a/src/daemon/agent_priv.c b/src/daemon/agent_priv.c
index 8efcb5e3..6a126fe8 100644
--- a/src/daemon/agent_priv.c
+++ b/src/daemon/agent_priv.c
@@ -84,12 +84,12 @@ agent_priv_unix_send(netsnmp_transport *t, void *buf, int size,
     void **opaque, int *olength)
 {
 	int rc = -1;
-	struct pollfd sagentx = {
-		.fd = t->sock,
-		.events = POLLOUT | POLLERR | POLLHUP
-	};
 
 	if (t != NULL && t->sock >= 0) {
+		struct pollfd sagentx = {
+			.fd = t->sock,
+			.events = POLLOUT | POLLERR | POLLHUP
+		};
 		while (rc < 0) {
 			rc = poll(&sagentx, 1, AGENT_WRITE_TIMEOUT);
 			if (rc == 0) {