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 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=unavailable 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 1B796C2B9F7 for ; Mon, 10 May 2021 10:56:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F414B61581 for ; Mon, 10 May 2021 10:56:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234995AbhEJK5Z (ORCPT ); Mon, 10 May 2021 06:57:25 -0400 Received: from mail.kernel.org ([198.145.29.99]:58292 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233097AbhEJKpG (ORCPT ); Mon, 10 May 2021 06:45:06 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5723E6198D; Mon, 10 May 2021 10:34:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620642884; bh=C2H65WP07QgvE+W6suGNJ0L+SwhbQURawXPM8DVvPM0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XVD1zsO+AqiBKpVrOojdNq2xozYfTaahSXWi8gI+HMxlpa3cGoN8z+vu+UFxjmCeT T79JcpECySANEc24zCX6UB9l8UnQqRJ95OrnvZLjCCnIOukJ6eZS1HN64R6EDwqqY7 vRC9pasqDiESweB05lY1pYpI8GSWHJJQc16FYNx8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hulk Robot , Wei Yongjun , Mark Brown , Sasha Levin Subject: [PATCH 5.10 092/299] spi: dln2: Fix reference leak to master Date: Mon, 10 May 2021 12:18:09 +0200 Message-Id: <20210510102007.984328221@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210510102004.821838356@linuxfoundation.org> References: <20210510102004.821838356@linuxfoundation.org> User-Agent: quilt/0.66 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: Wei Yongjun [ Upstream commit 9b844b087124c1538d05f40fda8a4fec75af55be ] Call spi_master_get() holds the reference count to master device, thus we need an additional spi_master_put() call to reduce the reference count, otherwise we will leak a reference to master. This commit fix it by removing the unnecessary spi_master_get(). Reported-by: Hulk Robot Signed-off-by: Wei Yongjun Link: https://lore.kernel.org/r/20210409082955.2907950-1-weiyongjun1@huawei.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- drivers/spi/spi-dln2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/spi-dln2.c b/drivers/spi/spi-dln2.c index 75b33d7d14b0..9a4d942fafcf 100644 --- a/drivers/spi/spi-dln2.c +++ b/drivers/spi/spi-dln2.c @@ -780,7 +780,7 @@ exit_free_master: static int dln2_spi_remove(struct platform_device *pdev) { - struct spi_master *master = spi_master_get(platform_get_drvdata(pdev)); + struct spi_master *master = platform_get_drvdata(pdev); struct dln2_spi *dln2 = spi_master_get_devdata(master); pm_runtime_disable(&pdev->dev); -- 2.30.2