From nobody Tue Dec 16 12:35:41 2025 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 0384FC4332F for ; Thu, 13 Oct 2022 17:53:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229775AbiJMRxz (ORCPT ); Thu, 13 Oct 2022 13:53:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54292 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229826AbiJMRx0 (ORCPT ); Thu, 13 Oct 2022 13:53:26 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2009915201B; Thu, 13 Oct 2022 10:53:13 -0700 (PDT) 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 B7597CE22CB; Thu, 13 Oct 2022 17:53:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A8A81C433C1; Thu, 13 Oct 2022 17:53:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1665683588; bh=gtlsmRQIxOF1aD70zk6aG8lbdASWebPDvTW22e+qgeY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0rX8uIQAomkhDJWF59utteLTetuUjGlWPL5pRhiuLu9ef9R2cy3fpCKkGQSxY1TZe xxFPEO9HlsPTzmWHi8ipYo+9zV9hGyZKi3d+gytOPSf1GjmE29mpa6Yvx0Czkj9X5s B06ykDuvzqFpusSKK5y4qTCpA0Ih7a4DBcvBG04s= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Swati Agarwal , Radhey Shyam Pandey , Vinod Koul , Sasha Levin Subject: [PATCH 5.4 06/38] dmaengine: xilinx_dma: Report error in case of dma_set_mask_and_coherent API failure Date: Thu, 13 Oct 2022 19:52:07 +0200 Message-Id: <20221013175144.477698452@linuxfoundation.org> X-Mailer: git-send-email 2.38.0 In-Reply-To: <20221013175144.245431424@linuxfoundation.org> References: <20221013175144.245431424@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Swati Agarwal [ Upstream commit 8f2b6bc79c32f0fa60df000ae387a790ec80eae9 ] The driver does not handle the failure case while calling dma_set_mask_and_coherent API. In case of failure, capture the return value of API and then report an error. Addresses-coverity: Unchecked return value (CHECKED_RETURN) Signed-off-by: Swati Agarwal Reviewed-by: Radhey Shyam Pandey Link: https://lore.kernel.org/r/20220817061125.4720-4-swati.agarwal@xilinx.= com Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin --- drivers/dma/xilinx/xilinx_dma.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dm= a.c index 792776c86ee8..3bb711e735ab 100644 --- a/drivers/dma/xilinx/xilinx_dma.c +++ b/drivers/dma/xilinx/xilinx_dma.c @@ -2703,7 +2703,11 @@ static int xilinx_dma_probe(struct platform_device *= pdev) xdev->ext_addr =3D false; =20 /* Set the dma mask bits */ - dma_set_mask_and_coherent(xdev->dev, DMA_BIT_MASK(addr_width)); + err =3D dma_set_mask_and_coherent(xdev->dev, DMA_BIT_MASK(addr_width)); + if (err < 0) { + dev_err(xdev->dev, "DMA mask error %d\n", err); + goto disable_clks; + } =20 /* Initialize the DMA engine */ xdev->common.dev =3D &pdev->dev; --=20 2.35.1