From patchwork Wed May 12 14:47:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 437206 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham 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 3C8B6C433B4 for ; Wed, 12 May 2021 14:57:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0426D61462 for ; Wed, 12 May 2021 14:57:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231720AbhELO6f (ORCPT ); Wed, 12 May 2021 10:58:35 -0400 Received: from mail.kernel.org ([198.145.29.99]:45390 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232409AbhELO5A (ORCPT ); Wed, 12 May 2021 10:57:00 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 0D69F6162A; Wed, 12 May 2021 14:55:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620831331; bh=QVtYnit0ErfXmwg2fhzMHcokLuD4gHXu/DqoKVwRb5E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GnYQxFmSrXme4WVIVSwtAk5N21Q9sgiGL1hCTgVAW8082YSa02ThED7mQ38kOspv9 51Eku08jKwMAuEPrrdB7EjwDEDvdCeoyE+oUUZk7D2Mct0G2pHxcdzUMU3e7c+mEvI alQY9kVeMAjEcrkB5iJeUoo0QaBysWqnub5lrR+o= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , Miquel Raynal , Sasha Levin Subject: [PATCH 5.4 076/244] mtd: rawnand: fsmc: Fix error code in fsmc_nand_probe() Date: Wed, 12 May 2021 16:47:27 +0200 Message-Id: <20210512144745.469259844@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144743.039977287@linuxfoundation.org> References: <20210512144743.039977287@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dan Carpenter [ Upstream commit e7a97528e3c787802d8c643d6ab2f428511bb047 ] If dma_request_channel() fails then the probe fails and it should return a negative error code, but currently it returns success. fixes: 4774fb0a48aa ("mtd: nand/fsmc: Add DMA support") Signed-off-by: Dan Carpenter Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/YCqaOZ83OvPOzLwh@mwanda Signed-off-by: Sasha Levin --- drivers/mtd/nand/raw/fsmc_nand.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mtd/nand/raw/fsmc_nand.c b/drivers/mtd/nand/raw/fsmc_nand.c index a6964feeec77..81e4b0f46662 100644 --- a/drivers/mtd/nand/raw/fsmc_nand.c +++ b/drivers/mtd/nand/raw/fsmc_nand.c @@ -1066,11 +1066,13 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) host->read_dma_chan = dma_request_channel(mask, filter, NULL); if (!host->read_dma_chan) { dev_err(&pdev->dev, "Unable to get read dma channel\n"); + ret = -ENODEV; goto disable_clk; } host->write_dma_chan = dma_request_channel(mask, filter, NULL); if (!host->write_dma_chan) { dev_err(&pdev->dev, "Unable to get write dma channel\n"); + ret = -ENODEV; goto release_dma_read_chan; } }