From patchwork Mon Jul 12 06:06:07 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: 474032 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, URIBL_BLOCKED, 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 7D275C11F66 for ; Mon, 12 Jul 2021 07:09:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6ABE3611C2 for ; Mon, 12 Jul 2021 07:09:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242219AbhGLHLt (ORCPT ); Mon, 12 Jul 2021 03:11:49 -0400 Received: from mail.kernel.org ([198.145.29.99]:42268 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244033AbhGLHKU (ORCPT ); Mon, 12 Jul 2021 03:10:20 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id DE6AB610E5; Mon, 12 Jul 2021 07:06:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626073562; bh=mnRYRODX2g7er1tqw8vcCWPLTh7bVw7/p8chobbMU7E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ViS9IuHjobXkMXF+x05VEs7Aq1bWQ2G/TtuNZRfEPhNXeKR/NwWzTnWuUCsQS7tOp eGWc06ojVtH+w+lE6Kl6puP2cDJhY/1EPXjmAhAQSQ4EozUhVN+J+yT+rGx9WJSblH 5oETLFyNQ0G9EBgO16ac2HrUA6JHO4bmg2sK1nsU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Zhang Qilong , Herbert Xu , Sasha Levin Subject: [PATCH 5.12 284/700] crypto: omap-sham - Fix PM reference leak in omap sham ops Date: Mon, 12 Jul 2021 08:06:07 +0200 Message-Id: <20210712061006.441652922@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210712060924.797321836@linuxfoundation.org> References: <20210712060924.797321836@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 ca323b2c61ec321eb9f2179a405b9c34cdb4f553 ] pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. We fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced. Fixes: 604c31039dae4 ("crypto: omap-sham - Check for return value from pm_runtime_get_sync") Signed-off-by: Zhang Qilong Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- drivers/crypto/omap-sham.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c index ae0d320d3c60..dd53ad9987b0 100644 --- a/drivers/crypto/omap-sham.c +++ b/drivers/crypto/omap-sham.c @@ -372,7 +372,7 @@ static int omap_sham_hw_init(struct omap_sham_dev *dd) { int err; - err = pm_runtime_get_sync(dd->dev); + err = pm_runtime_resume_and_get(dd->dev); if (err < 0) { dev_err(dd->dev, "failed to get sync: %d\n", err); return err; @@ -2244,7 +2244,7 @@ static int omap_sham_suspend(struct device *dev) static int omap_sham_resume(struct device *dev) { - int err = pm_runtime_get_sync(dev); + int err = pm_runtime_resume_and_get(dev); if (err < 0) { dev_err(dev, "failed to get sync: %d\n", err); return err;