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 69D75C00140 for ; Mon, 15 Aug 2022 18:37:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242613AbiHOSh2 (ORCPT ); Mon, 15 Aug 2022 14:37:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53612 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243881AbiHOSgB (ORCPT ); Mon, 15 Aug 2022 14:36:01 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 213D43B94C; Mon, 15 Aug 2022 11:22:53 -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 ams.source.kernel.org (Postfix) with ESMTPS id 08D41B8106E; Mon, 15 Aug 2022 18:22:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4EE55C433C1; Mon, 15 Aug 2022 18:22:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660587770; bh=trG8oyJvYdJGnFL4oAnns9pnq+hwSnbarSZgSlzOSAQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=09wmNw6r1FqpYceGf+LN+hxQ2DzF0wgBSJxF4ARhfbpL2wij911t/rQjiK4220c0F vY4F/S4n3ZQlwOugIZfxo1CiVuW/L23iWgh70M+RJVENrPJSmRP2twgH7BMFki/8GJ xokTlcaxHmv8Fo50hJxocFYzCq/ydAg6ALlB5IWk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Christophe JAILLET , Mark Brown , Sasha Levin Subject: [PATCH 5.15 158/779] spi: spi-altera-dfl: Fix an error handling path Date: Mon, 15 Aug 2022 19:56:42 +0200 Message-Id: <20220815180344.099776694@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180337.130757997@linuxfoundation.org> References: <20220815180337.130757997@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Christophe JAILLET [ Upstream commit 8e3ca32f46994e74b7f43c57731150b2aedb2630 ] The spi_alloc_master() call is not undone in all error handling paths. Moreover, there is no .remove function to release the allocated memory. In order to fix both this issues, switch to devm_spi_alloc_master(). This allows further simplification of the probe. Fixes: ba2fc167e944 ("spi: altera: Add DFL bus driver for Altera API Controller") Signed-off-by: Christophe JAILLET Link: https://lore.kernel.org/r/0607bb59f4073f86abe5c585d35245aef0b045c6.1653805901.git.christophe.jaillet@wanadoo.fr Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- drivers/spi/spi-altera-dfl.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/spi/spi-altera-dfl.c b/drivers/spi/spi-altera-dfl.c index ca40923258af..596e181ae136 100644 --- a/drivers/spi/spi-altera-dfl.c +++ b/drivers/spi/spi-altera-dfl.c @@ -128,9 +128,9 @@ static int dfl_spi_altera_probe(struct dfl_device *dfl_dev) struct spi_master *master; struct altera_spi *hw; void __iomem *base; - int err = -ENODEV; + int err; - master = spi_alloc_master(dev, sizeof(struct altera_spi)); + master = devm_spi_alloc_master(dev, sizeof(struct altera_spi)); if (!master) return -ENOMEM; @@ -159,10 +159,9 @@ static int dfl_spi_altera_probe(struct dfl_device *dfl_dev) altera_spi_init_master(master); err = devm_spi_register_master(dev, master); - if (err) { - dev_err(dev, "%s failed to register spi master %d\n", __func__, err); - goto exit; - } + if (err) + return dev_err_probe(dev, err, "%s failed to register spi master\n", + __func__); if (dfl_dev->revision == FME_FEATURE_REV_MAX10_SPI_N5010) strscpy(board_info.modalias, "m10-n5010", SPI_NAME_SIZE); @@ -179,9 +178,6 @@ static int dfl_spi_altera_probe(struct dfl_device *dfl_dev) } return 0; -exit: - spi_master_put(master); - return err; } static const struct dfl_device_id dfl_spi_altera_ids[] = { -- 2.35.1