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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F3725C433F5 for ; Thu, 21 Apr 2022 16:33:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230355AbiDUQgS (ORCPT ); Thu, 21 Apr 2022 12:36:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49946 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230172AbiDUQgR (ORCPT ); Thu, 21 Apr 2022 12:36:17 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1110E3B3CC for ; Thu, 21 Apr 2022 09:33:26 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id A002A61D5B for ; Thu, 21 Apr 2022 16:33:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9DF21C385AA; Thu, 21 Apr 2022 16:33:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1650558805; bh=r/AuHhNBb2APuc70tFynpNaJvWU6anBaVvyonuQXPNo=; h=Subject:To:From:Date:From; b=F6bG3DlfSSAQMncVdgjIttP+hFIb2fErud6MSQdjZGrzlcyLF+0Io9mfZdSYSEoL2 C68elTh8j0go5vEtkYF7KyoRLbpzxrNKTkNj1iNmb5oR0Fbcr2H5HBiLC9vr4oHDm4 4NP5Ph5D7Za7TlkpMEEaAdKe6Pe1rFzSlt95rYeU= Subject: patch "usb: xhci: tegra:Fix PM usage reference leak of" added to usb-linus To: zhangqilong3@huawei.com, gregkh@linuxfoundation.org, stable@vger.kernel.org From: Date: Thu, 21 Apr 2022 18:33:21 +0200 Message-ID: <16505588011639@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org This is a note to let you know that I've just added the patch titled usb: xhci: tegra:Fix PM usage reference leak of to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >From 8771039482d965bdc8cefd972bcabac2b76944a8 Mon Sep 17 00:00:00 2001 From: zhangqilong Date: Sat, 19 Mar 2022 10:38:22 +0800 Subject: usb: xhci: tegra:Fix PM usage reference leak of tegra_xusb_unpowergate_partitions pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. We fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced. Fixes: 41a7426d25fa ("usb: xhci: tegra: Unlink power domain devices") Cc: stable Signed-off-by: Zhang Qilong Link: https://lore.kernel.org/r/20220319023822.145641-1-zhangqilong3@huawei.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-tegra.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index c8af2cd2216d..996958a6565c 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -1034,13 +1034,13 @@ static int tegra_xusb_unpowergate_partitions(struct tegra_xusb *tegra) int rc; if (tegra->use_genpd) { - rc = pm_runtime_get_sync(tegra->genpd_dev_ss); + rc = pm_runtime_resume_and_get(tegra->genpd_dev_ss); if (rc < 0) { dev_err(dev, "failed to enable XUSB SS partition\n"); return rc; } - rc = pm_runtime_get_sync(tegra->genpd_dev_host); + rc = pm_runtime_resume_and_get(tegra->genpd_dev_host); if (rc < 0) { dev_err(dev, "failed to enable XUSB Host partition\n"); pm_runtime_put_sync(tegra->genpd_dev_ss); -- 2.36.0