From patchwork Tue Oct 27 13:55:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 307349 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=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 9EC1AC55179 for ; Tue, 27 Oct 2020 16:34:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 587CA218AC for ; Tue, 27 Oct 2020 16:34:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603816442; bh=kx3Dz01bN0mLh4/s+fj8rwGVJwOs1TAhF7lySDRDJwI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=UyqfpwHx1q1SZW6Pi97FPkUC2kUFxJYZPr6QcQxzpVuWn5m7VKQX0sLPFHxhOSoG/ CPqw2732QN/2LrNtak3gpfblToc1YJ+3Lpeld2FUAESSPPbSfZ6xBa95xLzbFMUdl1 GL4wo6FWjovtI0YIbvExm3Fu5IpW8LUZ7gU/KBqA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1810130AbgJ0QeA (ORCPT ); Tue, 27 Oct 2020 12:34:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:49624 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1802463AbgJ0Psy (ORCPT ); Tue, 27 Oct 2020 11:48:54 -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 876702072C; Tue, 27 Oct 2020 15:48:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603813732; bh=kx3Dz01bN0mLh4/s+fj8rwGVJwOs1TAhF7lySDRDJwI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uinpxXP/gktanFOX5qMql/tkGaq7/DdNordGJ/GK44nM9swl+WX03lJtmQ/0rBVnp w7VugOZNl9OE2N0a42wx5lsSaZDdR5b21/3ENb8swtBo80NEOlaDWvhK3Bty09Kdj1 e3Jx4Z/DlgLtF0PYEwfJGCHBF6GzWLKBqme2Ipps= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Qiushi Wu , Hans Verkuil , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH 5.9 652/757] media: exynos4-is: Fix a reference count leak due to pm_runtime_get_sync Date: Tue, 27 Oct 2020 14:55:02 +0100 Message-Id: <20201027135521.126144114@linuxfoundation.org> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201027135450.497324313@linuxfoundation.org> References: <20201027135450.497324313@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Qiushi Wu [ Upstream commit c47f7c779ef0458a58583f00c9ed71b7f5a4d0a2 ] On calling pm_runtime_get_sync() the reference count of the device is incremented. In case of failure, decrement the reference count before returning the error. Signed-off-by: Qiushi Wu Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/platform/exynos4-is/media-dev.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c index 9a575233e4c1e..9034f9cf88481 100644 --- a/drivers/media/platform/exynos4-is/media-dev.c +++ b/drivers/media/platform/exynos4-is/media-dev.c @@ -484,8 +484,10 @@ static int fimc_md_register_sensor_entities(struct fimc_md *fmd) return -ENXIO; ret = pm_runtime_get_sync(fmd->pmf); - if (ret < 0) + if (ret < 0) { + pm_runtime_put(fmd->pmf); return ret; + } fmd->num_sensors = 0;