diff --git a/net/batman-adv/bat_sysfs.c b/net/batman-adv/bat_sysfs.c
index 85ba20d..497a070 100644
--- a/net/batman-adv/bat_sysfs.c
+++ b/net/batman-adv/bat_sysfs.c
@@ -488,24 +488,24 @@
 	    (strncmp(hard_iface->soft_iface->name, buff, IFNAMSIZ) == 0))
 		goto out;
 
-	if (status_tmp == IF_NOT_IN_USE) {
-		rtnl_lock();
-		hardif_disable_interface(hard_iface);
-		rtnl_unlock();
+	if (!rtnl_trylock()) {
+		ret = -ERESTARTSYS;
 		goto out;
 	}
 
-	/* if the interface already is in use */
-	if (hard_iface->if_status != IF_NOT_IN_USE) {
-		rtnl_lock();
+	if (status_tmp == IF_NOT_IN_USE) {
 		hardif_disable_interface(hard_iface);
-		rtnl_unlock();
+		goto unlock;
 	}
 
-	rtnl_lock();
-	ret = hardif_enable_interface(hard_iface, buff);
-	rtnl_unlock();
+	/* if the interface already is in use */
+	if (hard_iface->if_status != IF_NOT_IN_USE)
+		hardif_disable_interface(hard_iface);
 
+	ret = hardif_enable_interface(hard_iface, buff);
+
+unlock:
+	rtnl_unlock();
 out:
 	hardif_free_ref(hard_iface);
 	return ret;