datapath: Avoid use-after-free error in dp_device_event().

[sliver-openvswitch.git] / datapath / dp_notify.c

diff --git a/datapath/dp_notify.c b/datapath/dp_notify.c
index 942d628..07fd222 100644 (file)
--- a/datapath/dp_notify.c
+++ b/datapath/dp_notify.c
@@ -37,9 +37,9 @@ static int dp_device_event(struct notifier_block *unused, unsigned long event,
                if (!is_internal_dev(dev)) {
                        struct sk_buff *reply;
 
-                       dp_detach_port(vport);
                        reply = ovs_vport_cmd_build_info(vport, 0, 0,
                                                         OVS_VPORT_CMD_DEL);
+                       dp_detach_port(vport);
                        if (IS_ERR(reply)) {
                                netlink_set_err(INIT_NET_GENL_SOCK, 0,
                                                dp_vport_multicast_group.id,