From 9248e99dcc0cb1444060ee6037b8c7c2fcbdd184 Mon Sep 17 00:00:00 2001
From: kimocoder <christian@aircrack-ng.org>
Date: Wed, 13 Nov 2019 17:27:34 +0100
Subject: [PATCH] Fix interface rename error

---
 os_dep/linux/os_intfs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/os_dep/linux/os_intfs.c b/os_dep/linux/os_intfs.c
index 446d788..6739ca8 100644
--- a/os_dep/linux/os_intfs.c
+++ b/os_dep/linux/os_intfs.c
@@ -1419,7 +1419,7 @@ static u8 is_rtw_ndev(struct net_device *ndev)
 static int rtw_ndev_notifier_call(struct notifier_block *nb, unsigned long state, void *ptr)
 {
 	struct net_device *ndev;
-	_adapter *adapter;
+	_adapter *adapter = rtw_netdev_priv(ndev);
 
 	if (ptr == NULL)
 		return NOTIFY_DONE;
@@ -1443,6 +1443,8 @@ static int rtw_ndev_notifier_call(struct notifier_block *nb, unsigned long state
 	switch (state) {
 	case NETDEV_CHANGENAME:
 		rtw_adapter_proc_replace(ndev);
+		strncpy(adapter->old_ifname, ndev->name, IFNAMSIZ);
+		adapter->old_ifname[IFNAMSIZ-1] = 0;
 		break;
 	#ifdef CONFIG_NEW_NETDEV_HDL
 	case NETDEV_PRE_UP :