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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7D528C433EF for ; Mon, 21 Feb 2022 07:10:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345852AbiBUHKY (ORCPT ); Mon, 21 Feb 2022 02:10:24 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:34208 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345851AbiBUHKW (ORCPT ); Mon, 21 Feb 2022 02:10:22 -0500 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3E3ECB69 for ; Sun, 20 Feb 2022 23:10:00 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id A9363CE0E16 for ; Mon, 21 Feb 2022 07:09:58 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8F62EC340E9; Mon, 21 Feb 2022 07:09:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1645427397; bh=pEYmByWiwKF2X3QQJLd8VlvotDohA7aADSGU7llfhfY=; h=Subject:To:Cc:From:Date:From; b=bkmU4gorN9/8sD3ZCfx5m8qUrnl/RPmTNmHcvqlcmXfnDxm8X9LaddWeicJ8bemVb cXFz5Qzh7KHECbPHj9JBLqdAYd+8hgSI7aZaGz6N0J0xBQe1vZPP1CYhgIgVkxiT6s f05vuyRv6cFot6+Y76ycfIjtgqhyEFkFMiHI0Ynk= Subject: FAILED: patch "[PATCH] dmaengine: sh: rcar-dmac: Check for error num after" failed to apply to 5.4-stable tree To: jiasheng@iscas.ac.cn, geert+renesas@glider.be, vkoul@kernel.org Cc: From: Date: Mon, 21 Feb 2022 08:09:49 +0100 Message-ID: <1645427389179147@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From da2ad87fba0891576aadda9161b8505fde81a84d Mon Sep 17 00:00:00 2001 From: Jiasheng Jiang Date: Tue, 11 Jan 2022 09:12:39 +0800 Subject: [PATCH] dmaengine: sh: rcar-dmac: Check for error num after dma_set_max_seg_size As the possible failure of the dma_set_max_seg_size(), it should be better to check the return value of the dma_set_max_seg_size(). Fixes: 97d49c59e219 ("dmaengine: rcar-dmac: set scatter/gather max segment size") Reported-by: Geert Uytterhoeven Signed-off-by: Jiasheng Jiang Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20220111011239.452837-1-jiasheng@iscas.ac.cn Signed-off-by: Vinod Koul diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c index 4a34ddd9c1c6..13d12d660cc2 100644 --- a/drivers/dma/sh/rcar-dmac.c +++ b/drivers/dma/sh/rcar-dmac.c @@ -1868,7 +1868,10 @@ static int rcar_dmac_probe(struct platform_device *pdev) dmac->dev = &pdev->dev; platform_set_drvdata(pdev, dmac); - dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK); + ret = dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK); + if (ret) + return ret; + ret = dma_set_mask_and_coherent(dmac->dev, DMA_BIT_MASK(40)); if (ret) return ret;