From nobody Sat May 10 06:43:44 2025 Delivered-To: importer2@patchew.org Received-SPF: pass (zohomail.com: domain of vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; envelope-from=linux-kernel-owner@vger.kernel.org; helo=vger.kernel.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass(p=none dis=none) header.from=kernel.org ARC-Seal: i=1; a=rsa-sha256; t=1620207777; cv=none; d=zohomail.com; s=zohoarc; b=bPElfQUowzjC8lrZokv0+Bv53t4KcqYjLmJNQ/N/Y5Gqw541VtN/5xcNxgV1RO7t1xICGPuP8b2b5AatECvOpVDkemZ22Zw2GNIMuD2YjpfmK3+rQHeEHzW0OVluwbLN7uFvUaz79W7QGpM3q0e/DHzkOzTEuwuocyRfw3EAEZ4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1620207777; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Id:MIME-Version:Message-ID:References:Sender:Subject:To; bh=1ZFzSE2IVuZODd6FC4oh/XS22wnSl52DQoWPZe01+hQ=; b=TVlNwFAJrkYQ6tq0zyjgcdxSKP6XNuhKFGRW9ECiS+bs6gB0p2do7DeYZe5/61ZCoQqu11E+sQsNXDjFMMeZ/P1mfBoMYxyfG/H0IgVkrS/6UAWeYTXCiHz+J+h4LCrlry/Ky8BG+p1gSuPvgIoudyDNLIIvBPN+AXAR5T5xzEg= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass header.from= (p=none dis=none) header.from= Return-Path: Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mx.zohomail.com with SMTP id 1620207777508988.1955972284318; Wed, 5 May 2021 02:42:57 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232888AbhEEJnu (ORCPT ); Wed, 5 May 2021 05:43:50 -0400 Received: from mail.kernel.org ([198.145.29.99]:48636 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232413AbhEEJnQ (ORCPT ); Wed, 5 May 2021 05:43:16 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 440076141C; Wed, 5 May 2021 09:42:19 +0000 (UTC) Received: by mail.kernel.org with local (Exim 4.94) (envelope-from ) id 1leE2r-00AHwX-8H; Wed, 05 May 2021 11:42:17 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1620207739; bh=e6cg3vt5gdRSnzuWDjBWlr3jZ9qzDtzBe//Hw9aDZms=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UTRFnfuFAjc8bTsLJzXYCs7bJJiLrJT4aQkq1wE9ELZ6bKZpIV6DU2/2WkfulFbcY cPj0VkZ3DAStETq7XrOAHya7zoBwOUAHf+uBYsaugIK2BUoPEEe3EIZiCXKxs/H3PY S1h4gng4dzYhzkIbwKC4FdNUn5hhX/jlvDXh1hQ2fZlbOI1zLz5ag+IGIh73Y2393A tHkNN1cFwcAc2/pPzizSb1l8tNLjGGzGmumw9eyhWgCrXvEmc52XZSyALnDEbkMIhF AOHskWLYGBMnAxEGxWrWYKHX9r+giFf3kl/zSllgbc8vInNM8g3KVFaa0jolGb1PLT nu9zA4ms+MRMA== From: Mauro Carvalho Chehab Cc: linuxarm@huawei.com, mauro.chehab@huawei.com, Mauro Carvalho Chehab , Hans Verkuil , Marek Szyprowski , Mauro Carvalho Chehab , linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-samsung-soc@vger.kernel.org, Sylwester Nawrocki Subject: [PATCH 15/25] media: s5p: fix pm_runtime_get_sync() usage count Date: Wed, 5 May 2021 11:42:05 +0200 Message-Id: <57a141a2c538b253f1c9502a790c370007d2ed83.1620207353.git.mchehab+huawei@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: Mauro Carvalho Chehab To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" The pm_runtime_get_sync() internally increments the dev->power.usage_count without decrementing it, even on errors. Replace it by the new pm_runtime_resume_and_get(), introduced by: commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal wi= th usage counter") in order to properly decrement the usage counter, avoiding a potential PM usage counter leak. While here, check if the PM runtime error was caught at s5p_cec_adap_enable(). Reviewed-by: Sylwester Nawrocki Acked-by: Marek Szyprowski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/cec/platform/s5p/s5p_cec.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/media/cec/platform/s5p/s5p_cec.c b/drivers/media/cec/p= latform/s5p/s5p_cec.c index 3c7c4c3c798c..028a09a7531e 100644 --- a/drivers/media/cec/platform/s5p/s5p_cec.c +++ b/drivers/media/cec/platform/s5p/s5p_cec.c @@ -35,10 +35,13 @@ MODULE_PARM_DESC(debug, "debug level (0-2)"); =20 static int s5p_cec_adap_enable(struct cec_adapter *adap, bool enable) { + int ret; struct s5p_cec_dev *cec =3D cec_get_drvdata(adap); =20 if (enable) { - pm_runtime_get_sync(cec->dev); + ret =3D pm_runtime_resume_and_get(cec->dev); + if (ret < 0) + return ret; =20 s5p_cec_reset(cec); =20 --=20 2.30.2