From 2253748164d8bbe0831710fcd5d4d2c353b04a70 Mon Sep 17 00:00:00 2001 From: Martin Kaiser Date: Mon, 17 May 2021 22:18:25 +0200 Subject: [PATCH] staging: rtl8188eu: use safe iterator in rtw_sta_flush Use list_for_each_entry_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 Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20210517201826.25150-5-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8188eu/core/rtw_ap.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/staging/rtl8188eu/core/rtw_ap.c b/drivers/staging/rtl8188eu/core/rtw_ap.c index d297d53..bbecb072 100644 --- a/drivers/staging/rtl8188eu/core/rtw_ap.c +++ b/drivers/staging/rtl8188eu/core/rtw_ap.c @@ -1573,8 +1573,8 @@ u8 ap_free_sta(struct adapter *padapter, struct sta_info *psta, int rtw_sta_flush(struct adapter *padapter) { - struct list_head *phead, *plist; - struct sta_info *psta = NULL; + struct list_head *phead; + struct sta_info *psta, *temp; struct sta_priv *pstapriv = &padapter->stapriv; struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info; @@ -1588,9 +1588,7 @@ int rtw_sta_flush(struct adapter *padapter) spin_lock_bh(&pstapriv->asoc_list_lock); phead = &pstapriv->asoc_list; /* free sta asoc_queue */ - list_for_each(plist, phead) { - psta = list_entry(plist, struct sta_info, asoc_list); - + list_for_each_entry_safe(psta, temp, phead, asoc_list) { list_del_init(&psta->asoc_list); pstapriv->asoc_list_cnt--; -- 2.7.4