linux-kernel - [PATCH 4/6] staging: rtl8188eu: use safe iterator in rtw_acl_remove

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Message-Id: <20210516160613.30489-4-martin@kaiser.cx>
Date:   Sun, 16 May 2021 18:06:11 +0200
From:   Martin Kaiser <martin@...ser.cx>
To:     Larry Finger <Larry.Finger@...inger.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Guenter Roeck <linux@...ck-us.net>
Cc:     linux-staging@...ts.linux.dev, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org, Martin Kaiser <martin@...ser.cx>
Subject: [PATCH 4/6] staging: rtl8188eu: use safe iterator in rtw_acl_remove_sta

Use list_for_each_safe, we may delete list items while iterating over
the list.

Fixes: 23017c8842d2 ("staging: rtl8188eu: Use list iterators and helpers")
Signed-off-by: Martin Kaiser <martin@...ser.cx>
---
compile-tested only

 drivers/staging/rtl8188eu/core/rtw_ap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_ap.c b/drivers/staging/rtl8188eu/core/rtw_ap.c
index a410b42ecb6e..601974df4114 100644
--- a/drivers/staging/rtl8188eu/core/rtw_ap.c
+++ b/drivers/staging/rtl8188eu/core/rtw_ap.c
@@ -1072,7 +1072,7 @@ int rtw_acl_add_sta(struct adapter *padapter, u8 *addr)
 
 int rtw_acl_remove_sta(struct adapter *padapter, u8 *addr)
 {
-	struct list_head *plist, *phead;
+	struct list_head *plist, *phead, *temp;
 	struct rtw_wlan_acl_node *paclnode;
 	struct sta_priv *pstapriv = &padapter->stapriv;
 	struct wlan_acl_pool *pacl_list = &pstapriv->acl_list;
@@ -1083,7 +1083,7 @@ int rtw_acl_remove_sta(struct adapter *padapter, u8 *addr)
 	spin_lock_bh(&pacl_node_q->lock);
 
 	phead = get_list_head(pacl_node_q);
-	list_for_each(plist, phead) {
+	list_for_each_safe(plist, temp, phead) {
 		paclnode = list_entry(plist, struct rtw_wlan_acl_node, list);
 
 		if (!memcmp(paclnode->addr, addr, ETH_ALEN)) {
-- 
2.20.1