From patchwork Tue Oct 27 13:54:43 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 312203 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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 52B15C55178 for ; Tue, 27 Oct 2020 16:53:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0743B21707 for ; Tue, 27 Oct 2020 16:53:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603817601; bh=oDOnjFHkVgiIoA7tw0e2d0rfAy5TH6MzhU8d0U9ZVbo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=OYVxXdsWnD5D5pqM3cxkmT29qXLFKivLHrymEa73X0wPQlr+joNMVRHe/zPtPnkfh une9hDI8B5N0l3VisOuUHNucUyqqGYLmc2G8XsJ3QpNsCyEqAl/c+tV2SxJMIlfQJW 8pJB/Gdmx+KWG6TFAY17DMNbsIJPhYHZg68SHGs0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1794656AbgJ0PMx (ORCPT ); Tue, 27 Oct 2020 11:12:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:49474 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1794651AbgJ0PMw (ORCPT ); Tue, 27 Oct 2020 11:12:52 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 367CC20728; Tue, 27 Oct 2020 15:12:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603811571; bh=oDOnjFHkVgiIoA7tw0e2d0rfAy5TH6MzhU8d0U9ZVbo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JdVKtvEoSknNAh36ap7pO99mNHypCxfmobgm8kFOTF4HiYS4aOCPvBYeqfPfc8n6b VDO46nKlji0JhXlfsmv0VnZMm+wc/RZszQnKsxmpoB1PTgavVn/igvA49dPYfhaQAb lSkPJ1DgOSuTGsSiBtUErx/4ha84vmnTBrOCcoNY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dinghao Liu , Kieran Bingham , Laurent Pinchart , Hans Verkuil , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH 5.8 540/633] media: vsp1: Fix runtime PM imbalance on error Date: Tue, 27 Oct 2020 14:54:43 +0100 Message-Id: <20201027135548.126221562@linuxfoundation.org> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201027135522.655719020@linuxfoundation.org> References: <20201027135522.655719020@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dinghao Liu [ Upstream commit 98fae901c8883640202802174a4bd70a1b9118bd ] pm_runtime_get_sync() increments the runtime PM usage counter even when it returns an error code. Thus a pairing decrement is needed on the error handling path to keep the counter balanced. Signed-off-by: Dinghao Liu Reviewed-by: Kieran Bingham Reviewed-by: Laurent Pinchart Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/platform/vsp1/vsp1_drv.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/vsp1/vsp1_drv.c b/drivers/media/platform/vsp1/vsp1_drv.c index c650e45bb0ad1..dc62533cf32ce 100644 --- a/drivers/media/platform/vsp1/vsp1_drv.c +++ b/drivers/media/platform/vsp1/vsp1_drv.c @@ -562,7 +562,12 @@ int vsp1_device_get(struct vsp1_device *vsp1) int ret; ret = pm_runtime_get_sync(vsp1->dev); - return ret < 0 ? ret : 0; + if (ret < 0) { + pm_runtime_put_noidle(vsp1->dev); + return ret; + } + + return 0; } /* @@ -845,12 +850,12 @@ static int vsp1_probe(struct platform_device *pdev) /* Configure device parameters based on the version register. */ pm_runtime_enable(&pdev->dev); - ret = pm_runtime_get_sync(&pdev->dev); + ret = vsp1_device_get(vsp1); if (ret < 0) goto done; vsp1->version = vsp1_read(vsp1, VI6_IP_VERSION); - pm_runtime_put_sync(&pdev->dev); + vsp1_device_put(vsp1); for (i = 0; i < ARRAY_SIZE(vsp1_device_infos); ++i) { if ((vsp1->version & VI6_IP_VERSION_MODEL_MASK) ==