From: Dan Fandrich <dan@coneharvesters.com>
Date: Mon, 4 Feb 2013 22:59:41 +0000 (+0100)
Subject: Fix a NULL pointer dereference during shutdown
X-Git-Tag: collectd-5.3.0~40
X-Git-Url: https://git.octo.it/?a=commitdiff_plain;h=c9ca810479718e02eeecfda9155f06585a0362fc;hp=30afd0bf16985698c663274607bb7e86b82388f6;p=collectd.git

Fix a NULL pointer dereference during shutdown

Signed-off-by: Florian Forster <octo@collectd.org>
---

diff --git a/src/plugin.c b/src/plugin.c
index 70372342..942f8bfe 100644
--- a/src/plugin.c
+++ b/src/plugin.c
@@ -810,10 +810,12 @@ static void stop_write_threads (void) /* {{{ */
 
 	pthread_mutex_lock (&write_lock);
 	i = 0;
-	for (q = write_queue_head; q != NULL; q = q->next)
+	for (q = write_queue_head; q != NULL; )
 	{
+		write_queue_t *q1 = q;
 		plugin_value_list_free (q->vl);
-		sfree (q);
+		q = q->next;
+		sfree (q1);
 		i++;
 	}
 	write_queue_head = NULL;