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Mon, 17 May 2021 13:34:30 -0700 (PDT) Sender: Guenter Roeck Date: Mon, 17 May 2021 13:34:29 -0700 From: Guenter Roeck To: Martin Kaiser Cc: Larry Finger , Greg Kroah-Hartman , Christophe JAILLET , Dan Carpenter , linux-staging@lists.linux.dev, kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 5/6] staging: rtl8188eu: use safe iterator in rtw_sta_flush Message-ID: <20210517203429.GE3620180@roeck-us.net> References: <20210516160613.30489-1-martin@kaiser.cx> <20210517201826.25150-1-martin@kaiser.cx> <20210517201826.25150-5-martin@kaiser.cx> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210517201826.25150-5-martin@kaiser.cx> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, May 17, 2021 at 10:18:25PM +0200, Martin Kaiser wrote: > 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 > --- > v2: > - use list_for_each_entry_safe > > 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 d297d5301153..bbecb07274f6 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--; > > -- > 2.20.1 >