X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fplugin.c;h=a5ae97b6fd825f857580e548ddaac79117f6474a;hb=f9666730f0bde464c27b794810b74eed7741e073;hp=6139baf0de05a2145ac5020d73d2bf64ef2814ae;hpb=704675554b87f98a65af6a35dcf62c58ce4a5272;p=collectd.git

diff --git a/src/plugin.c b/src/plugin.c
index 6139baf0..a5ae97b6 100644
--- a/src/plugin.c
+++ b/src/plugin.c
@@ -1136,6 +1136,8 @@ int plugin_dispatch_values (value_list_t *vl)
 
 	data_set_t *ds;
 
+	int free_meta_data = 0;
+
 	if ((vl == NULL) || (vl->type[0] == 0)
 			|| (vl->values == NULL) || (vl->values_len < 1))
 	{
@@ -1143,6 +1145,12 @@ int plugin_dispatch_values (value_list_t *vl)
 		return (-1);
 	}
 
+	/* Free meta data only if the calling function didn't specify any. In
+	 * this case matches and targets may add some and the calling function
+	 * may not expect (and therefore free) that data. */
+	if (vl->meta == NULL)
+		free_meta_data = 1;
+
 	if (list_write == NULL)
 		c_complain_once (LOG_WARNING, &no_write_complaint,
 				"plugin_dispatch_values: No write callback has been "
@@ -1283,6 +1291,12 @@ int plugin_dispatch_values (value_list_t *vl)
 		vl->values_len = saved_values_len;
 	}
 
+	if ((free_meta_data != 0) && (vl->meta != NULL))
+	{
+		meta_data_destroy (vl->meta);
+		vl->meta = NULL;
+	}
+
 	return (0);
 } /* int plugin_dispatch_values */