From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-00069f02.pphosted.com (mx0b-00069f02.pphosted.com [205.220.177.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E77BE2F80 for ; Mon, 7 Jun 2021 18:18:40 +0000 (UTC) Received: from pps.filterd (m0246632.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 157ICtYI025925; Mon, 7 Jun 2021 18:18:38 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : cc : subject : message-id : mime-version : content-type : in-reply-to; s=corp-2020-01-29; bh=J6c/UpeBBUvx1KHKZ5MgtQjBE3sGsdX7w3eG7ihd214=; b=rBIOIy9LAUItOIQsKUmlvg9VvnNfrYMvsDZ+4ejz01ghwwa67LSBFNiyIaAaRWRG3cha 22qCdXdE0OiQfQe+Kd2fKX7q/OcckBJYoPKVTU1D7IP2MtesfaCye0wkQIRyF1zRb9e0 hZ5sTIO64St3aw/QQRa67ny8Ee4u6/lwg1nfcn/lKW4Z48fgY3e787oEZNkU57mEcavs B+a3EEp0lQcGzd//WIievdisdSa5ovG79Lt4TQIDsUE0yAwSqd9IakyMYmxrS0qtuYQe KQj6I3/pSM3cKQ1OkerKAQ2xv0hJBFMx7lVlken/fCecFXZ0QpLGgjhItGz+Rq6uIJFi 8g== Received: from oracle.com (userp3030.oracle.com [156.151.31.80]) by mx0b-00069f02.pphosted.com with ESMTP id 3917d4gb5s-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 07 Jun 2021 18:18:38 +0000 Received: from userp3030.oracle.com (userp3030.oracle.com [127.0.0.1]) by pps.podrdrct (8.16.0.36/8.16.0.36) with SMTP id 157IHQe0084193; Mon, 7 Jun 2021 18:18:37 GMT Received: from pps.reinject (localhost [127.0.0.1]) by userp3030.oracle.com with ESMTP id 38yxcu2v7x-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 07 Jun 2021 18:18:37 +0000 Received: from userp3030.oracle.com (userp3030.oracle.com [127.0.0.1]) by pps.reinject (8.16.0.36/8.16.0.36) with SMTP id 157IH0Ks083155; Mon, 7 Jun 2021 18:18:36 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userp3030.oracle.com with ESMTP id 38yxcu2v7q-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 07 Jun 2021 18:18:36 +0000 Received: from abhmp0009.oracle.com (abhmp0009.oracle.com [141.146.116.15]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 157IIZAU011348; Mon, 7 Jun 2021 18:18:35 GMT Received: from mwanda (/41.212.42.34) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 07 Jun 2021 11:18:34 -0700 Date: Mon, 7 Jun 2021 21:18:25 +0300 From: Dan Carpenter To: Larry Finger , Guenter Roeck Cc: Greg Kroah-Hartman , Michael Straube , Romain Perier , Allen Pais , linux-staging@lists.linux.dev, kernel-janitors@vger.kernel.org Subject: [PATCH 6/7] staging: rtl8188eu: use safe iterator in rtl8188eu_xmitframe_complete() Message-ID: X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Mailer: git-send-email haha only kidding X-Proofpoint-ORIG-GUID: gan46adm_aMuI9zkeakQmjsH1ahojxCV X-Proofpoint-GUID: gan46adm_aMuI9zkeakQmjsH1ahojxCV This loop calls rtw_free_xmitframe(pxmitpriv, pxmitframe) which removes "pxmitframe" (our list iterator) from the list. So to prevent a forever loop we need to use a safe list iterator. Fixes: 23017c8842d2 ("staging: rtl8188eu: Use list iterators and helpers") Signed-off-by: Dan Carpenter --- drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c b/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c index 10a8dcc6ca95..19055a1a92c1 100644 --- a/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c +++ b/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c @@ -414,6 +414,7 @@ bool rtl8188eu_xmitframe_complete(struct adapter *adapt, struct xmit_priv *pxmitpriv) { struct xmit_frame *pxmitframe = NULL; + struct xmit_frame *n; struct xmit_frame *pfirstframe = NULL; struct xmit_buf *pxmitbuf; @@ -422,7 +423,7 @@ bool rtl8188eu_xmitframe_complete(struct adapter *adapt, struct sta_info *psta = NULL; struct tx_servq *ptxservq = NULL; - struct list_head *xmitframe_plist = NULL, *xmitframe_phead = NULL; + struct list_head *xmitframe_phead = NULL; u32 pbuf; /* next pkt address */ u32 pbuf_tail; /* last pkt tail */ @@ -507,10 +508,7 @@ bool rtl8188eu_xmitframe_complete(struct adapter *adapt, spin_lock_bh(&pxmitpriv->lock); xmitframe_phead = get_list_head(&ptxservq->sta_pending); - list_for_each(xmitframe_plist, xmitframe_phead) { - pxmitframe = list_entry(xmitframe_plist, struct xmit_frame, - list); - + list_for_each_entry_safe(pxmitframe, n, xmitframe_phead, list) { pxmitframe->agg_num = 0; /* not first frame of aggregation */ pxmitframe->pkt_offset = 0; /* not first frame of aggregation, no need to reserve offset */ -- 2.30.2