exec plugin: Avoid a warning when freeing meta data.

[collectd.git] / src / exec.c

diff --git a/src/exec.c b/src/exec.c
index ea31b30..1f8a9ac 100644 (file)
--- a/src/exec.c
+++ b/src/exec.c
@@ -23,6 +23,8 @@
  *   Peter Holik <peter at holik.at>
  **/
 
+#define _BSD_SOURCE /* For setgroups */
+
 #include "collectd.h"
 #include "common.h"
 #include "plugin.h"
@@ -728,7 +730,8 @@ static void *exec_notification_one (void *arg) /* {{{ */
   DEBUG ("exec plugin: Child %i exited with status %i.",
       pid, status);
 
-  plugin_notification_meta_free (n->meta);
+  if (n->meta != NULL)
+    plugin_notification_meta_free (n->meta);
   n->meta = NULL;
   sfree (arg);
   pthread_exit ((void *) 0);
@@ -777,7 +780,8 @@ static int exec_read (void) /* {{{ */
   return (0);
 } /* int exec_read }}} */
 
-static int exec_notification (const notification_t *n)
+static int exec_notification (const notification_t *n,
+    user_data_t __attribute__((unused)) *user_data)
 {
   program_list_t *pl;
   program_list_and_notification_t *pln;
@@ -817,7 +821,7 @@ static int exec_notification (const notification_t *n)
   } /* for (pl) */
 
   return (0);
-} /* int exec_notification */
+} /* }}} int exec_notification */
 
 static int exec_shutdown (void) /* {{{ */
 {
@@ -850,7 +854,8 @@ void module_register (void)
   plugin_register_complex_config ("exec", exec_config);
   plugin_register_init ("exec", exec_init);
   plugin_register_read ("exec", exec_read);
-  plugin_register_notification ("exec", exec_notification);
+  plugin_register_notification ("exec", exec_notification,
+      /* user_data = */ NULL);
   plugin_register_shutdown ("exec", exec_shutdown);
 } /* void module_register */