datapath: Don't directly access RCU protected pointers.

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

diff --git a/datapath/dp_sysfs_dp.c b/datapath/dp_sysfs_dp.c
index 6cbd864..587b8bc 100644 (file)
--- a/datapath/dp_sysfs_dp.c
+++ b/datapath/dp_sysfs_dp.c
@@ -350,7 +350,8 @@ static struct attribute_group bridge_group = {
  */
 int dp_sysfs_add_dp(struct datapath *dp)
 {
-       struct kobject *kobj = vport_get_kobj(dp->ports[ODPP_LOCAL]);
+       struct kobject *kobj =
+               vport_get_kobj(rtnl_dereference(dp->ports[ODPP_LOCAL]));
        int err;
 
        /* Create /sys/class/net/<devname>/bridge directory. */
@@ -379,7 +380,8 @@ int dp_sysfs_add_dp(struct datapath *dp)
 
 int dp_sysfs_del_dp(struct datapath *dp)
 {
-       struct kobject *kobj = vport_get_kobj(dp->ports[ODPP_LOCAL]);
+       struct kobject *kobj =
+               vport_get_kobj(rtnl_dereference(dp->ports[ODPP_LOCAL]));
 
        kobject_del(&dp->ifobj);
        sysfs_remove_group(kobj, &bridge_group);