From patchwork Wed Nov 14 12:20:29 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 10682399 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D561714BA for ; Wed, 14 Nov 2018 12:20:43 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C8B7F2B2F3 for ; Wed, 14 Nov 2018 12:20:43 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BD0722B314; Wed, 14 Nov 2018 12:20:43 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7A1F12B2F3 for ; Wed, 14 Nov 2018 12:20:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732222AbeKNWXi (ORCPT ); Wed, 14 Nov 2018 17:23:38 -0500 Received: from mx1.redhat.com ([209.132.183.28]:46574 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726823AbeKNWXi (ORCPT ); Wed, 14 Nov 2018 17:23:38 -0500 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 6024B2D811; Wed, 14 Nov 2018 12:20:37 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-219.ams2.redhat.com [10.36.116.219]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3884C60BF6; Wed, 14 Nov 2018 12:20:34 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 75C31944; Wed, 14 Nov 2018 13:20:33 +0100 (CET) From: Gerd Hoffmann To: dri-devel@lists.freedesktop.org Cc: gurchetansingh@chromium.org, Gerd Hoffmann , Sumit Semwal , linux-media@vger.kernel.org (open list:DMA BUFFER SHARING FRAMEWORK), linaro-mm-sig@lists.linaro.org (moderated list:DMA BUFFER SHARING FRAMEWORK), linux-kernel@vger.kernel.org (open list) Subject: [PATCH] udmabuf: set read/write flag when exporting Date: Wed, 14 Nov 2018 13:20:29 +0100 Message-Id: <20181114122029.16766-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Wed, 14 Nov 2018 12:20:37 +0000 (UTC) Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Otherwise, mmap fails when done with PROT_WRITE. Suggested-by: Gurchetan Singh Signed-off-by: Gerd Hoffmann Reviewed-by: Gurchetan Singh Tested-by: Gurchetan Singh --- drivers/dma-buf/udmabuf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c index e70328ab7e..d9ff246093 100644 --- a/drivers/dma-buf/udmabuf.c +++ b/drivers/dma-buf/udmabuf.c @@ -189,6 +189,7 @@ static long udmabuf_create(const struct udmabuf_create_list *head, exp_info.ops = &udmabuf_ops; exp_info.size = ubuf->pagecount << PAGE_SHIFT; exp_info.priv = ubuf; + exp_info.flags = O_RDWR; buf = dma_buf_export(&exp_info); if (IS_ERR(buf)) {