From: Martin Kaiser Date: Mon, 17 May 2021 20:18:22 +0000 (+0200) Subject: staging: rtl8188eu: use safe iterator in rtw_free_all_stainfo X-Git-Tag: v5.15~790^2~271 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=565a45a1c301908b169eeae56f21b9f306f6346d;p=platform%2Fkernel%2Flinux-starfive.git staging: rtl8188eu: use safe iterator in rtw_free_all_stainfo This is another case where we may remove list entries while we iterate over the list. Use list_for_each_entry_safe to avoid an endless loop. Fixes: 23017c8842d2 ("staging: rtl8188eu: Use list iterators and helpers") Signed-off-by: Martin Kaiser Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20210517201826.25150-2-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c b/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c index 7941ca0397ed..5af7af5f5a5a 100644 --- a/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c +++ b/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c @@ -379,9 +379,9 @@ exit: /* free all stainfo which in sta_hash[all] */ void rtw_free_all_stainfo(struct adapter *padapter) { - struct list_head *plist, *phead; + struct list_head *phead; s32 index; - struct sta_info *psta = NULL; + struct sta_info *psta, *temp; struct sta_priv *pstapriv = &padapter->stapriv; struct sta_info *pbcmc_stainfo = rtw_get_bcmc_stainfo(padapter); @@ -392,9 +392,7 @@ void rtw_free_all_stainfo(struct adapter *padapter) for (index = 0; index < NUM_STA; index++) { phead = &pstapriv->sta_hash[index]; - list_for_each(plist, phead) { - psta = list_entry(plist, struct sta_info, hash_list); - + list_for_each_entry_safe(psta, temp, phead, hash_list) { if (pbcmc_stainfo != psta) rtw_free_stainfo(padapter, psta); }