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 90994E7C4E9 for ; Wed, 4 Oct 2023 18:28:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244271AbjJDS3B (ORCPT ); Wed, 4 Oct 2023 14:29:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54972 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244272AbjJDS3B (ORCPT ); Wed, 4 Oct 2023 14:29:01 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E7740BF for ; Wed, 4 Oct 2023 11:28:57 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3E69CC433C7; Wed, 4 Oct 2023 18:28:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1696444137; bh=GkfID3NuDmMQd6zrhZyl+6eUSMPfzGV8Zwipui1W4HI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=b2R2qwZ01IFjfqpQddRVntp38ZnZats1ASdlZzBfpqsnU4xdlT4HL1gvZVOqtMB62 g8N6OVAgtArm7Fal57IBUXXKmfmfMen1BQCUf4ysyWBEgV4c+LwvLx5o6IQPt1Gtk9 MkEiGyx14WHCzY9XH/n64JF3XMP53NptNrsaDWsQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dan Carpenter , Chris Morgan , Sebastian Reichel , Sasha Levin Subject: [PATCH 6.5 143/321] power: supply: rk817: Fix node refcount leak Date: Wed, 4 Oct 2023 19:54:48 +0200 Message-ID: <20231004175235.870477367@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231004175229.211487444@linuxfoundation.org> References: <20231004175229.211487444@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 6.5-stable review patch. If anyone has any objections, please let me know. ------------------ From: Chris Morgan [ Upstream commit 488ef44c068e79752dba8eda0b75f524f111a695 ] Dan Carpenter reports that the Smatch static checker warning has found that there is another refcount leak in the probe function. While of_node_put() was added in one of the return paths, it should in fact be added for ALL return paths that return an error and at driver removal time. Fixes: 54c03bfd094f ("power: supply: Fix refcount leak in rk817_charger_probe") Reported-by: Dan Carpenter Closes: https://lore.kernel.org/linux-pm/dc0bb0f8-212d-4be7-be69-becd2a3f9a80@kili.mountain/ Signed-off-by: Chris Morgan Link: https://lore.kernel.org/r/20230920145644.57964-1-macroalpha82@gmail.com Signed-off-by: Sebastian Reichel Signed-off-by: Sasha Levin --- drivers/power/supply/rk817_charger.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/power/supply/rk817_charger.c b/drivers/power/supply/rk817_charger.c index 8328bcea1a299..242e158824222 100644 --- a/drivers/power/supply/rk817_charger.c +++ b/drivers/power/supply/rk817_charger.c @@ -1045,6 +1045,13 @@ static void rk817_charging_monitor(struct work_struct *work) queue_delayed_work(system_wq, &charger->work, msecs_to_jiffies(8000)); } +static void rk817_cleanup_node(void *data) +{ + struct device_node *node = data; + + of_node_put(node); +} + static int rk817_charger_probe(struct platform_device *pdev) { struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent); @@ -1061,11 +1068,13 @@ static int rk817_charger_probe(struct platform_device *pdev) if (!node) return -ENODEV; + ret = devm_add_action_or_reset(&pdev->dev, rk817_cleanup_node, node); + if (ret) + return ret; + charger = devm_kzalloc(&pdev->dev, sizeof(*charger), GFP_KERNEL); - if (!charger) { - of_node_put(node); + if (!charger) return -ENOMEM; - } charger->rk808 = rk808; -- 2.40.1