From patchwork Mon Dec 28 12:48:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 355240 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=-18.8 required=3.0 tests=BAYES_00,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 19D94C433DB for ; Mon, 28 Dec 2020 12:53:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D7A05207C9 for ; Mon, 28 Dec 2020 12:53:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728152AbgL1Mx1 (ORCPT ); Mon, 28 Dec 2020 07:53:27 -0500 Received: from mail.kernel.org ([198.145.29.99]:49862 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728116AbgL1MxN (ORCPT ); Mon, 28 Dec 2020 07:53:13 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 4E024224D2; Mon, 28 Dec 2020 12:52:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1609159972; bh=Umn2im3wKL1U3i3xsCfO0vl3cKxcFTZf51tW8yz409Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BqS2Zg4kZu0BHVc0EJQ/7KBevLALLL5I8LiUsbZaEJOYmzb8Fxcip/vcecA/GsLjp 8ygzIfJTBckvxm1soAdlBr5LUlpHMXrWoGyz0B/ANMjeGdC9sdA1ASOQjp2z4ZNgzA pv8URb+WlODMXADIUJfN7XNirvi031WsN5TxF55c= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Zhang Qilong , Mark Brown , Sasha Levin Subject: [PATCH 4.4 040/132] spi: tegra20-sflash: fix reference leak in tegra_sflash_resume Date: Mon, 28 Dec 2020 13:48:44 +0100 Message-Id: <20201228124848.352218469@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201228124846.409999325@linuxfoundation.org> References: <20201228124846.409999325@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Zhang Qilong [ Upstream commit 3482e797ab688da6703fe18d8bad52f94199f4f2 ] pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to pm_runtime_put_noidle will result in reference leak in tegra_sflash_resume, so we should fix it. Fixes: 8528547bcc336 ("spi: tegra: add spi driver for sflash controller") Signed-off-by: Zhang Qilong Link: https://lore.kernel.org/r/20201103141323.5841-1-zhangqilong3@huawei.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- drivers/spi/spi-tegra20-sflash.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c index b6558bb6f9dfc..4b9541e1726a5 100644 --- a/drivers/spi/spi-tegra20-sflash.c +++ b/drivers/spi/spi-tegra20-sflash.c @@ -564,6 +564,7 @@ static int tegra_sflash_resume(struct device *dev) ret = pm_runtime_get_sync(dev); if (ret < 0) { + pm_runtime_put_noidle(dev); dev_err(dev, "pm runtime failed, e = %d\n", ret); return ret; }