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=-19.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 D069FC433ED for ; Sun, 2 May 2021 14:09:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AF935611EE for ; Sun, 2 May 2021 14:09:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232607AbhEBOKh (ORCPT ); Sun, 2 May 2021 10:10:37 -0400 Received: from mail.kernel.org ([198.145.29.99]:51048 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232777AbhEBOHg (ORCPT ); Sun, 2 May 2021 10:07:36 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2A40061476; Sun, 2 May 2021 14:06:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1619964376; bh=v3Vd59VNV4GZOB3OwVKyYi0vtm3tkcdj3lsakjlC4Ug=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jZ5+ZmZXofg5F/KgK20VPjg3SBrsQVuQGkVYGuDDlYDPPMk1bC8BgiFShPaNAzQM5 n3UinsDJ9FtKmCx372HWmHpa/OfUdkNfwqCBzTR2CAOQ4VOVyBU74B2BnZFGnl5PeN E0mpIGsTWs/0oylOizekYvhCpXTSC0+oW8m2u/l7p6V7rP+VOuHDH6gx1MRNgr8Cx7 6KvoqUZsIKm+zmCgC/qUSbc7H3C3oXpFGOagW6wf1CHC+NO7uQ4hYKsRkPzDpHt7xf rM/jjszS340M7T5ZpWOsuG/v4Hlr6EDUQnbB4fduV/FH05sYkGekTJGVxhD3fWmoEE X4GzfYBuALjQw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Wei Yongjun , Hulk Robot , Mark Brown , Sasha Levin , linux-spi@vger.kernel.org Subject: [PATCH AUTOSEL 4.9 08/12] spi: omap-100k: Fix reference leak to master Date: Sun, 2 May 2021 10:06:02 -0400 Message-Id: <20210502140606.2720323-8-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210502140606.2720323-1-sashal@kernel.org> References: <20210502140606.2720323-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Wei Yongjun [ Upstream commit a23faea76d4cf5f75decb574491e66f9ecd707e7 ] 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/20210409082954.2906933-1-weiyongjun1@huawei.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- drivers/spi/spi-omap-100k.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/spi/spi-omap-100k.c b/drivers/spi/spi-omap-100k.c index 76a8425be227..1eccdc4a4581 100644 --- a/drivers/spi/spi-omap-100k.c +++ b/drivers/spi/spi-omap-100k.c @@ -435,7 +435,7 @@ static int omap1_spi100k_probe(struct platform_device *pdev) static int omap1_spi100k_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 omap1_spi100k *spi100k = spi_master_get_devdata(master); pm_runtime_disable(&pdev->dev); @@ -449,7 +449,7 @@ static int omap1_spi100k_remove(struct platform_device *pdev) #ifdef CONFIG_PM static int omap1_spi100k_runtime_suspend(struct device *dev) { - struct spi_master *master = spi_master_get(dev_get_drvdata(dev)); + struct spi_master *master = dev_get_drvdata(dev); struct omap1_spi100k *spi100k = spi_master_get_devdata(master); clk_disable_unprepare(spi100k->ick); @@ -460,7 +460,7 @@ static int omap1_spi100k_runtime_suspend(struct device *dev) static int omap1_spi100k_runtime_resume(struct device *dev) { - struct spi_master *master = spi_master_get(dev_get_drvdata(dev)); + struct spi_master *master = dev_get_drvdata(dev); struct omap1_spi100k *spi100k = spi_master_get_devdata(master); int ret; -- 2.30.2