From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C7C4C43613 for ; Mon, 24 Jun 2019 10:18:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4BA1120645 for ; Mon, 24 Jun 2019 10:18:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1561371513; bh=dCYuUHsFqV7uKyvtqq6FlM4P/lhE4gHZNSKblgjLo6E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ilgwkEYkN6/1FQ54jCfVFjk2pEiStsJnk2GfG/9CPoMovVfLT5BspezTWnEp/L9FT MGA3Xc4grO63pKOgKPkqE+x+kCt+BnYKvyWdoUjRZmr0CM5slCp9eRrlFiXizkISON 2KYAK5xbdxLqdV+eBdZ/+JInpLFN8bQO1UP2LWOE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728818AbfFXKSY (ORCPT ); Mon, 24 Jun 2019 06:18:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:53696 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729957AbfFXKQO (ORCPT ); Mon, 24 Jun 2019 06:16:14 -0400 Received: from localhost (f4.8f.5177.ip4.static.sl-reverse.com [119.81.143.244]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7769D20645; Mon, 24 Jun 2019 10:16:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1561371374; bh=dCYuUHsFqV7uKyvtqq6FlM4P/lhE4gHZNSKblgjLo6E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eMhDN5zzabyzv860nUqicoAPkO7ofjvIn0jqlWHZHvLh71yBBXfK0CObmD+QISFfT 2PTWb2dcW8FcLDP28ixdgxhFlAdUoshs7RusjsMWTbOL1iqpw0tIZHOzgcyFWVnlOC B+Hu+arcuRlGrAZa8wfrSk5zkOq7uFW/rREEad2I= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Lucas Stach , Gerd Hoffmann , Sasha Levin Subject: [PATCH 5.1 080/121] udmabuf: actually unmap the scatterlist Date: Mon, 24 Jun 2019 17:56:52 +0800 Message-Id: <20190624092324.958730722@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190624092320.652599624@linuxfoundation.org> References: <20190624092320.652599624@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org [ Upstream commit 283f1e383e91d96fe652fad549537ae15cf31d60 ] unmap_udmabuf fails to actually unmap the scatterlist, leaving dangling mappings around. Fixes: fbb0de795078 ("Add udmabuf misc device") Signed-off-by: Lucas Stach Link: http://patchwork.freedesktop.org/patch/msgid/20190604202331.17482-1-l.stach@pengutronix.de Signed-off-by: Gerd Hoffmann Signed-off-by: Sasha Levin --- 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 cd57747286f2..9635897458a0 100644 --- a/drivers/dma-buf/udmabuf.c +++ b/drivers/dma-buf/udmabuf.c @@ -77,6 +77,7 @@ static void unmap_udmabuf(struct dma_buf_attachment *at, struct sg_table *sg, enum dma_data_direction direction) { + dma_unmap_sg(at->dev, sg->sgl, sg->nents, direction); sg_free_table(sg); kfree(sg); } -- 2.20.1