From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:36755 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2992806AbbHHWWr (ORCPT ); Sat, 8 Aug 2015 18:22:47 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kamil Dudka Subject: [PATCH 4.1 120/123] drm/nouveau: hold mutex when calling nouveau_abi16_fini() Date: Sat, 8 Aug 2015 15:09:58 -0700 Message-Id: <20150808220721.767184771@linuxfoundation.org> In-Reply-To: <20150808220717.771230091@linuxfoundation.org> References: <20150808220717.771230091@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kamil Dudka commit ac8c79304280da6ef05c348a9da03ab04898b994 upstream. This was the only access to cli->abi16 without holding the mutex. Signed-off-by: Kamil Dudka Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/nouveau/nouveau_drm.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -863,8 +863,10 @@ nouveau_drm_preclose(struct drm_device * pm_runtime_get_sync(dev->dev); + mutex_lock(&cli->mutex); if (cli->abi16) nouveau_abi16_fini(cli->abi16); + mutex_unlock(&cli->mutex); mutex_lock(&drm->client.mutex); list_del(&cli->head);