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Sun, 16 May 2021 12:24:52 -0700 (PDT) Sender: Guenter Roeck Date: Sun, 16 May 2021 12:24:50 -0700 From: Guenter Roeck To: Martin Kaiser Cc: Larry Finger , Greg Kroah-Hartman , linux-staging@lists.linux.dev, kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 5/6] staging: rtl8188eu: use safe iterator in rtw_sta_flush Message-ID: <20210516192450.GE2126643@roeck-us.net> References: <20210516160613.30489-1-martin@kaiser.cx> <20210516160613.30489-5-martin@kaiser.cx> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210516160613.30489-5-martin@kaiser.cx> Precedence: bulk List-ID: X-Mailing-List: kernel-janitors@vger.kernel.org On Sun, May 16, 2021 at 06:06:12PM +0200, Martin Kaiser wrote: > 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 Reviewed-by: Guenter Roeck > --- > 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 601974df4114..8ffafc7eb316 100644 > --- a/drivers/staging/rtl8188eu/core/rtw_ap.c > +++ b/drivers/staging/rtl8188eu/core/rtw_ap.c > @@ -1579,7 +1579,7 @@ u8 ap_free_sta(struct adapter *padapter, struct sta_info *psta, > > int rtw_sta_flush(struct adapter *padapter) > { > - struct list_head *phead, *plist; > + struct list_head *phead, *plist, *temp; > struct sta_info *psta = NULL; > struct sta_priv *pstapriv = &padapter->stapriv; > struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; > @@ -1594,7 +1594,7 @@ 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) { > + list_for_each_safe(plist, temp, phead) { > psta = list_entry(plist, struct sta_info, asoc_list); > > list_del_init(&psta->asoc_list); > -- > 2.20.1 >