snmp plugin: don't read from uninitialized pointer

[collectd.git] / src / snmp.c

diff --git a/src/snmp.c b/src/snmp.c
index acbdca0..7caa625 100644 (file)
--- a/src/snmp.c
+++ b/src/snmp.c
@@ -1194,7 +1194,7 @@ static int csnmp_dispatch_table (host_definition_t *host, data_definition_t *dat
 static int csnmp_read_table (host_definition_t *host, data_definition_t *data)
 {
   struct snmp_pdu *req;
-  struct snmp_pdu *res;
+  struct snmp_pdu *res = NULL;
   struct variable_list *vb;
 
   const data_set_t *ds;
@@ -1551,6 +1551,7 @@ static int csnmp_read_value (host_definition_t *host, data_definition_t *data)
     res = NULL;
 
     sfree (errstr);
+    sfree (vl.values);
     csnmp_host_close_session (host);
 
     return (-1);