From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 18 Jun 2013 16:24:37 +0000 (+0200)
Subject: interface: fix NULL pointer defref in interface_set_main_dev
X-Git-Url: https://git.archive.openwrt.org/?p=project%2Fnetifd.git;a=commitdiff_plain;h=987bdc77deecb928d86b9d710cc3bcfa5b3d80eb;hp=0b154730c1c2bb9ca73a23c46a9e46b8adf89d36;ds=sidebyside

interface: fix NULL pointer defref in interface_set_main_dev

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---

diff --git a/interface.c b/interface.c
index 81de337..ddbdca9 100644
--- a/interface.c
+++ b/interface.c
@@ -675,6 +675,9 @@ interface_set_main_dev(struct interface *iface, struct device *dev)
 		interface_set_l3_dev(iface, dev);
 
 	device_add_user(&iface->main_dev, dev);
+	if (!dev)
+		return;
+
 	if (claimed)
 		device_claim(&iface->l3_dev);