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From: Guenter Roeck <linux@roeck-us.net>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Larry Finger <Larry.Finger@lwfinger.net>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Martin Kaiser <martin@kaiser.cx>,
	Ivan Safonov <insafonov@gmail.com>,
	Paul McQuade <paulmcquad@gmail.com>,
	Michael Straube <straube.linux@gmail.com>,
	linux-staging@lists.linux.dev, kernel-janitors@vger.kernel.org
Subject: Re: [PATCH 1/7] staging: rtl8188eu: use safe iterator in stop_ap_mode()
Date: Wed, 9 Jun 2021 03:33:10 -0700	[thread overview]
Message-ID: <20210609103310.GA3727184@roeck-us.net> (raw)
In-Reply-To: <YL5ip4yz9NEB9RZO@mwanda>

On Mon, Jun 07, 2021 at 09:17:11PM +0300, Dan Carpenter wrote:
> This loop calls list_del_init() on the list iterator so it can result
> in a forever loop.
> 
> Fixes: 23017c8842d2 ("staging: rtl8188eu: Use list iterators and helpers")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

> ---
>  drivers/staging/rtl8188eu/core/rtw_ap.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/staging/rtl8188eu/core/rtw_ap.c b/drivers/staging/rtl8188eu/core/rtw_ap.c
> index bbecb07274f6..9399c17bfdbf 100644
> --- a/drivers/staging/rtl8188eu/core/rtw_ap.c
> +++ b/drivers/staging/rtl8188eu/core/rtw_ap.c
> @@ -1688,8 +1688,7 @@ void start_ap_mode(struct adapter *padapter)
>  
>  void stop_ap_mode(struct adapter *padapter)
>  {
> -	struct list_head *phead, *plist;
> -	struct rtw_wlan_acl_node *paclnode;
> +	struct rtw_wlan_acl_node *paclnode, *n;
>  	struct sta_info *psta = NULL;
>  	struct sta_priv *pstapriv = &padapter->stapriv;
>  	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
> @@ -1709,10 +1708,7 @@ void stop_ap_mode(struct adapter *padapter)
>  
>  	/* for ACL */
>  	spin_lock_bh(&pacl_node_q->lock);
> -	phead = get_list_head(pacl_node_q);
> -	list_for_each(plist, phead) {
> -		paclnode = list_entry(plist, struct rtw_wlan_acl_node, list);
> -
> +	list_for_each_entry_safe(paclnode, n, &pacl_node_q->queue, list) {
>  		if (paclnode->valid) {
>  			paclnode->valid = false;
>  
> -- 
> 2.30.2
> 

  reply	other threads:[~2021-06-09 10:33 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-07 18:15 [PATCH 0/7] staging: rtl8188eu: use safe version of list iterators Dan Carpenter
2021-06-07 18:17 ` [PATCH 1/7] staging: rtl8188eu: use safe iterator in stop_ap_mode() Dan Carpenter
2021-06-09 10:33   ` Guenter Roeck [this message]
2021-06-07 18:17 ` [PATCH 2/7] staging: rtl8188eu: use safe iterator in tx_beacon_hdl() Dan Carpenter
2021-06-09 10:34   ` Guenter Roeck
2021-06-07 18:17 ` [PATCH 3/7] staging: rtl8188eu: use safe iterator in dequeue_xmitframes_to_sleeping_queue() Dan Carpenter
2021-06-09 10:35   ` Guenter Roeck
2021-06-07 18:17 ` [PATCH 4/7] staging: rtl8188eu: use safe iterator in wakeup_sta_to_xmit() Dan Carpenter
2021-06-09 10:36   ` Guenter Roeck
2021-06-07 18:18 ` [PATCH 5/7] staging: rtl8188eu: use safe iterator in xmit_delivery_enabled_frames() Dan Carpenter
2021-06-09 10:37   ` Guenter Roeck
2021-06-07 18:18 ` [PATCH 6/7] staging: rtl8188eu: use safe iterator in rtl8188eu_xmitframe_complete() Dan Carpenter
2021-06-09 10:37   ` Guenter Roeck
2021-06-07 18:19 ` [PATCH 7/7] staging: rtl8188eu: delete some dead code Dan Carpenter
2021-06-09 10:39   ` Guenter Roeck

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