From patchwork Thu May 20 09:19:02 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: 444484 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=-19.1 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 1F83FC43461 for ; Thu, 20 May 2021 09:51:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F3D68611AD for ; Thu, 20 May 2021 09:51:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231721AbhETJwx (ORCPT ); Thu, 20 May 2021 05:52:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:52388 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234595AbhETJun (ORCPT ); Thu, 20 May 2021 05:50:43 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id C8E1F61412; Thu, 20 May 2021 09:35:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621503334; bh=m6K0Q5z3JBswtONh8nwuKIdadI0UXDKzWaTeGkcSLOo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qJY/BShCdFqezFzmPWBhh/wI7B3oNrRjqFJcbnIdlJIKtRFZwxepjAu4Xn8LjEpxZ mYxrsBw5SmAoXYY4PAb3BcApqILBfMYDmTCFxTksa7VH644TRGOIr0IDWkwFpFHXZh bbBPC+syp1culxFnE5fEnm8fkSY326/tnutX0o1o= 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 4.19 173/425] mtd: rawnand: fsmc: Fix error code in fsmc_nand_probe() Date: Thu, 20 May 2021 11:19:02 +0200 Message-Id: <20210520092137.128577883@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210520092131.308959589@linuxfoundation.org> References: <20210520092131.308959589@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 25d354e9448e..a31bb1da44ec 100644 --- a/drivers/mtd/nand/raw/fsmc_nand.c +++ b/drivers/mtd/nand/raw/fsmc_nand.c @@ -1099,11 +1099,13 @@ 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; } }