From: Rafał Miłecki <rafal@milecki.pl>
Date: Mon, 20 Mar 2017 11:54:50 +0000 (+0100)
Subject: Drop entries cached for interface we're going to delete
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fmdnsd.git;a=commitdiff_plain;h=e1bacef27d869234149951cc7f4c9d3e0d8f07ad

Drop entries cached for interface we're going to delete

Since we free memory with struct interface we can't keep
referencing/using it in cached records or services.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: John Crispin <john@phrozen.org>
---

diff --git a/interface.c b/interface.c
index a09e7ce..cde184b 100644
--- a/interface.c
+++ b/interface.c
@@ -34,6 +34,7 @@
 #include <libubox/uloop.h>
 #include <libubox/avl-cmp.h>
 #include <libubox/utils.h>
+#include "cache.h"
 #include "interface.h"
 #include "util.h"
 #include "dns.h"
@@ -519,6 +520,7 @@ iface_update_cb(struct vlist_tree *tree, struct vlist_node *node_new,
 
 	if (node_old) {
 		iface = container_of(node_old, struct interface, node);
+		cache_cleanup(iface);
 		interface_free(iface);
 	}