From patchwork Thu May 6 15:25:40 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 12242409 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=-16.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 CD461C43617 for ; Thu, 6 May 2021 15:27:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AFC9561949 for ; Thu, 6 May 2021 15:27:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235662AbhEFP2N (ORCPT ); Thu, 6 May 2021 11:28:13 -0400 Received: from mail.kernel.org ([198.145.29.99]:41070 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235211AbhEFP1y (ORCPT ); Thu, 6 May 2021 11:27:54 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id E8113613EA; Thu, 6 May 2021 15:26:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1620314800; bh=FkmgprH1Efaxx2ACANKQIX0x+YQtBzJ9hcv6iynvk/U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=e6WPCzWeK5ndy4vrit25wUyDiO0K5AqFr4oaF9rquuwtK9f2msNvU7ZaCClijoc26 4XDSeMrSjNiRbqARoYsLkBoYL0HqnHP/5gk95fIGhhrHblB6AjfFXNXi/kCHJL8OlS voy/XmUrCC46HextonH00dlR96DsaYP3HcTbA2MgKfdzcbDn/gzjtWK1wSkoLb+sRG O+NrVlMYp4TNAC5+5zzaOCgPqpFkwDa8LSK9Hegic/tAgBPSJUJhaYglv3NVHXB5fj 3pQOXiiwQD0zJmzck29ljMR7/k0q2DDqz0byD65/9QfhEUBnLgZu5c5LaVVYN8ZnnY yNc35wDpA+wsA== Received: by mail.kernel.org with local (Exim 4.94.2) (envelope-from ) id 1left7-000SB8-N5; Thu, 06 May 2021 17:26:05 +0200 From: Mauro Carvalho Chehab Cc: linuxarm@huawei.com, mauro.chehab@huawei.com, Mauro Carvalho Chehab , Greg Kroah-Hartman , Mauro Carvalho Chehab , Sakari Ailus , linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-staging@lists.linux.dev Subject: [PATCH v5 02/25] staging: media: atomisp: use pm_runtime_resume_and_get() Date: Thu, 6 May 2021 17:25:40 +0200 Message-Id: <4111169357a17dda547034b7a5e15f1ce225d4ab.1620314616.git.mchehab+huawei@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: References: MIME-Version: 1.0 Sender: Mauro Carvalho Chehab To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter") added pm_runtime_resume_and_get() in order to automatically handle dev->power.usage_count decrement on errors. Use the new API, in order to cleanup the error check logic. Besides that, the de-init order in case of css error was wrong. This change should also fix that. Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/media/atomisp/pci/atomisp_fops.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/staging/media/atomisp/pci/atomisp_fops.c b/drivers/staging/media/atomisp/pci/atomisp_fops.c index f1e6b2597853..26d05474a035 100644 --- a/drivers/staging/media/atomisp/pci/atomisp_fops.c +++ b/drivers/staging/media/atomisp/pci/atomisp_fops.c @@ -837,7 +837,7 @@ static int atomisp_open(struct file *file) } /* runtime power management, turn on ISP */ - ret = pm_runtime_get_sync(vdev->v4l2_dev->dev); + ret = pm_runtime_resume_and_get(vdev->v4l2_dev->dev); if (ret < 0) { dev_err(isp->dev, "Failed to power on device\n"); goto error; @@ -881,9 +881,9 @@ static int atomisp_open(struct file *file) css_error: atomisp_css_uninit(isp); -error: - hmm_pool_unregister(HMM_POOL_TYPE_DYNAMIC); pm_runtime_put(vdev->v4l2_dev->dev); +error: + hmm_pool_unregister(HMM_POOL_TYPE_DYNAMIC); rt_mutex_unlock(&isp->mutex); return ret; }