From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764470AbcINQID (ORCPT ); Wed, 14 Sep 2016 12:08:03 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:40205 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1763866AbcINQIC (ORCPT ); Wed, 14 Sep 2016 12:08:02 -0400 X-IBM-Helo: d03dlp02.boulder.ibm.com X-IBM-MailFrom: ivan@de.ibm.com From: Ivan Mikhaylov To: linux-kernel@vger.kernel.org Cc: netdev@vger.kernel.org Subject: [PATCH 2/2] net/ibm/emac: add mutex to 'set multicast list' Date: Wed, 14 Sep 2016 19:06:45 +0300 X-Mailer: git-send-email 2.7.4 (Apple Git-66) X-TM-AS-GCONF: 00 X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16091416-0016-0000-0000-000004AA489F X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00005759; HX=3.00000240; KW=3.00000007; PH=3.00000004; SC=3.00000185; SDB=6.00757638; UDB=6.00359368; IPR=6.00531145; BA=6.00004726; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00012670; XFM=3.00000011; UTC=2016-09-14 16:07:58 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16091416-0017-0000-0000-000032EC1C65 Message-Id: <1473869205-85314-2-git-send-email-ivan@de.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2016-09-14_08:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1609020000 definitions=main-1609140216 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org for preventing race conditions within ioctl calls. Signed-off-by: Ivan Mikhaylov --- drivers/net/ethernet/ibm/emac/core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c index 2dfc603..7af09cb 100644 --- a/drivers/net/ethernet/ibm/emac/core.c +++ b/drivers/net/ethernet/ibm/emac/core.c @@ -977,7 +977,10 @@ static void emac_set_multicast_list(struct net_device *ndev) dev->mcast_pending = 1; return; } + + mutex_lock(&dev->link_lock); __emac_set_multicast_list(dev); + mutex_unlock(&dev->link_lock); } static int emac_set_mac_address(struct net_device *ndev, void *sa) -- 2.7.4 (Apple Git-66)