From patchwork Thu Apr 8 07:18:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liu Shixin X-Patchwork-Id: 417582 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=-16.7 required=3.0 tests=BAYES_00, 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 DE22AC433B4 for ; Thu, 8 Apr 2021 07:19:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C102F61057 for ; Thu, 8 Apr 2021 07:19:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230383AbhDHHTh (ORCPT ); Thu, 8 Apr 2021 03:19:37 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:15965 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230329AbhDHHTe (ORCPT ); Thu, 8 Apr 2021 03:19:34 -0400 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4FGCJ563xKzyNjn; Thu, 8 Apr 2021 15:17:09 +0800 (CST) Received: from huawei.com (10.175.113.32) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.498.0; Thu, 8 Apr 2021 15:19:12 +0800 From: Shixin Liu To: Herbert Xu , "David S. Miller" CC: , , Shixin Liu Subject: [PATCH -next 7/7] crypto: omap-aes - Fix PM reference leak on omap-aes.c Date: Thu, 8 Apr 2021 15:18:39 +0800 Message-ID: <20210408071839.836942-1-liushixin2@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.175.113.32] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. Fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced. Signed-off-by: Shixin Liu --- drivers/crypto/omap-aes.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c index a45bdcf3026d..0dd4c6b157de 100644 --- a/drivers/crypto/omap-aes.c +++ b/drivers/crypto/omap-aes.c @@ -103,9 +103,8 @@ static int omap_aes_hw_init(struct omap_aes_dev *dd) dd->err = 0; } - err = pm_runtime_get_sync(dd->dev); + err = pm_runtime_resume_and_get(dd->dev); if (err < 0) { - pm_runtime_put_noidle(dd->dev); dev_err(dd->dev, "failed to get sync: %d\n", err); return err; } @@ -1134,7 +1133,7 @@ static int omap_aes_probe(struct platform_device *pdev) pm_runtime_set_autosuspend_delay(dev, DEFAULT_AUTOSUSPEND_DELAY); pm_runtime_enable(dev); - err = pm_runtime_get_sync(dev); + err = pm_runtime_resume_and_get(dev); if (err < 0) { dev_err(dev, "%s: failed to get_sync(%d)\n", __func__, err); @@ -1303,7 +1302,7 @@ static int omap_aes_suspend(struct device *dev) static int omap_aes_resume(struct device *dev) { - pm_runtime_get_sync(dev); + pm_runtime_resume_and_get(dev); return 0; } #endif