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=-20.4 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,URIBL_BLOCKED,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 321C1C07E9E for ; Sun, 4 Jul 2021 23:04:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1C26961283 for ; Sun, 4 Jul 2021 23:04:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230025AbhGDXHT (ORCPT ); Sun, 4 Jul 2021 19:07:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:45202 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229998AbhGDXHM (ORCPT ); Sun, 4 Jul 2021 19:07:12 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3F7E5613D2; Sun, 4 Jul 2021 23:04:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1625439876; bh=hSjnugpCRJfdhSCYyqirPRHugjApYrssbPiR6eQSbaA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Pw9SqdNOgCSpZoXHW7vcoNBRGE8NqQv5vhwfcgWM8bj46EUuBTj08DE6vMwaT6C4e A2EDUyE3d2iCVj7BDaZhjiFBBydbqe4tWJauh3XbkWdNuwCAaRlWoZmP1fws8JcuTH YNlUvXN+BZCzd84BEZNtftZCyaT+zXF/XgSe9NPxDSDoB5yI4upxQUr3uIVj3fcQLS wCRwFXwjhnAk1Zibcw+nuof76deBKo5Nu0wgwjZeO9hWIQqogvACvWkbkOEgXLL0PH a+75fy8Y2wKeZUUchoopkXNg1cSSYBEQhqyHv6QMbvJtfHJiX9yUhFbs+hsLZ62nNm cCHYSoJ8E+U2A== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Mauro Carvalho Chehab , Jonathan Cameron , Sylwester Nawrocki , Andrzej Pietrasiewicz , Sasha Levin , linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Subject: [PATCH AUTOSEL 5.13 11/85] media: s5p-jpeg: fix pm_runtime_get_sync() usage count Date: Sun, 4 Jul 2021 19:03:06 -0400 Message-Id: <20210704230420.1488358-11-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210704230420.1488358-1-sashal@kernel.org> References: <20210704230420.1488358-1-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: Mauro Carvalho Chehab [ Upstream commit 10343de268d10cf07b092b8b525e12ad558ead77 ] 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 with usage counter") in order to properly decrement the usage counter, avoiding a potential PM usage counter leak. As a plus, pm_runtime_resume_and_get() doesn't return positive numbers, so the return code validation can be removed. Reviewed-by: Jonathan Cameron Reviewed-by: Sylwester Nawrocki Acked-by: Andrzej Pietrasiewicz Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/platform/s5p-jpeg/jpeg-core.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c index 026111505f5a..d402e456f27d 100644 --- a/drivers/media/platform/s5p-jpeg/jpeg-core.c +++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c @@ -2566,11 +2566,8 @@ static void s5p_jpeg_buf_queue(struct vb2_buffer *vb) static int s5p_jpeg_start_streaming(struct vb2_queue *q, unsigned int count) { struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(q); - int ret; - - ret = pm_runtime_get_sync(ctx->jpeg->dev); - return ret > 0 ? 0 : ret; + return pm_runtime_resume_and_get(ctx->jpeg->dev); } static void s5p_jpeg_stop_streaming(struct vb2_queue *q) -- 2.30.2