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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 08C02C433DF for ; Mon, 29 Jun 2020 20:12:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D460620675 for ; Mon, 29 Jun 2020 20:12:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593461559; bh=+fjJTwtTffvmuCdEVZGk9qwlYddz6jrFPC0zOsFVzGY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=xzhF35RxxSPpQdYIabnXfF3ozNGtE5nuSGg+n/uUlJXMuMk4s29zi9O3HIX63Pwrm ogdQ7XAqSkJJfbRJtkKSc7GlKG+1rx2vg669Wm59C6XAnUgegLcVmPRGoNCgrkXTJX QRlN7tEJDpcKjcu8WcKZym5jIf0zv+moOx/qbFlY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730343AbgF2UMS (ORCPT ); Mon, 29 Jun 2020 16:12:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:40574 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732885AbgF2TaU (ORCPT ); Mon, 29 Jun 2020 15:30:20 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id DACF525283; Mon, 29 Jun 2020 15:36:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593444994; bh=+fjJTwtTffvmuCdEVZGk9qwlYddz6jrFPC0zOsFVzGY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TYIrEJqPk8PmGUUFzyucKdWrLJpiAB4GXEK7Sa9ZoRrfsR1x4350TbQYM/JdE8YJK Dtl45iEeeaXJ3aciSSBBQ10X90EYbOClxwDT4Z6S3jnrfqJ0xGG67tsm3pMnwFE9wa v+5zkh060UJcV94HtsD2yH0m3sptxqEhZpAg8i+A= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Dinghao Liu , Alexander Sverdlin , Herbert Xu , Sasha Levin Subject: [PATCH 4.19 094/131] hwrng: ks-sa - Fix runtime PM imbalance on error Date: Mon, 29 Jun 2020 11:34:25 -0400 Message-Id: <20200629153502.2494656-95-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200629153502.2494656-1-sashal@kernel.org> References: <20200629153502.2494656-1-sashal@kernel.org> MIME-Version: 1.0 X-KernelTest-Patch: http://kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.19.131-rc1.gz X-KernelTest-Tree: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git X-KernelTest-Branch: linux-4.19.y X-KernelTest-Patches: git://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git X-KernelTest-Version: 4.19.131-rc1 X-KernelTest-Deadline: 2020-07-01T15:34+00:00 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dinghao Liu [ Upstream commit 95459261c99f1621d90bc628c2a48e60b7cf9a88 ] pm_runtime_get_sync() increments the runtime PM usage counter even the call 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: Alexander Sverdlin Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- drivers/char/hw_random/ks-sa-rng.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/char/hw_random/ks-sa-rng.c b/drivers/char/hw_random/ks-sa-rng.c index 62c6696c1dbd8..b6d7db362b217 100644 --- a/drivers/char/hw_random/ks-sa-rng.c +++ b/drivers/char/hw_random/ks-sa-rng.c @@ -216,6 +216,7 @@ static int ks_sa_rng_probe(struct platform_device *pdev) ret = pm_runtime_get_sync(dev); if (ret < 0) { dev_err(dev, "Failed to enable SA power-domain\n"); + pm_runtime_put_noidle(dev); pm_runtime_disable(dev); return ret; } -- 2.25.1