From: Steven Barth <steven@midlink.org>
Date: Wed, 28 Sep 2011 11:02:04 +0000 (+0000)
Subject: interface: don't segfault with an unknown protocol
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=6d99c7d319393a0a1bf1cc091ab60568f8f70a99;p=oweals%2Fnetifd.git

interface: don't segfault with an unknown protocol
---

diff --git a/interface.c b/interface.c
index a5675f7..60efc7e 100644
--- a/interface.c
+++ b/interface.c
@@ -241,7 +241,8 @@ interface_alloc(const char *name, struct blob_attr *attr)
 
 	proto_attach_interface(iface, proto_name);
 
-	if (!(iface->proto_handler->flags & PROTO_FLAG_NODEV) &&
+	if (iface->proto_handler &&
+	    !(iface->proto_handler->flags & PROTO_FLAG_NODEV) &&
 	    (cur = tb[IFACE_ATTR_IFNAME])) {
 		dev = device_get(blobmsg_data(cur), true);
 		if (dev)