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 4F2E2C677F1 for ; Mon, 16 Jan 2023 17:09:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234249AbjAPRJ2 (ORCPT ); Mon, 16 Jan 2023 12:09:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33870 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234359AbjAPRI4 (ORCPT ); Mon, 16 Jan 2023 12:08:56 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8FFBE2E0F4 for ; Mon, 16 Jan 2023 08:49:13 -0800 (PST) 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 2B4E060F63 for ; Mon, 16 Jan 2023 16:49:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3E3B6C433EF; Mon, 16 Jan 2023 16:49:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1673887752; bh=+snJ8J5SVyO+evxkIMqCA4IfWMHLG+QWmPt52mRSJKw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UuQMFPX8HaNSH8o+UZd9+/MD9NlPQvkCUffq5rIMbO+S5xOuqmayR8NFZN1wR2+VI hvRWFDijC12CpvWtWQ9NezCa1CmjJJ3S2LyQPSNt8GCDdlmnU0ERJNc2CJqyETOh3b 8D805w6En/zhHgplUefA3m4RsB9t9l28SjtrywQU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Zeng Heng , Sebastian Reichel , Sasha Levin Subject: [PATCH 4.19 261/521] power: supply: fix residue sysfs file in error handle route of __power_supply_register() Date: Mon, 16 Jan 2023 16:48:43 +0100 Message-Id: <20230116154858.803062236@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230116154847.246743274@linuxfoundation.org> References: <20230116154847.246743274@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Zeng Heng [ Upstream commit 5b79480ce1978864ac3f06f2134dfa3b6691fe74 ] If device_add() succeeds, we should call device_del() when want to get rid of it, so move it into proper jump symbol. Otherwise, when __power_supply_register() returns fail and goto wakeup_init_failed to exit, there is still residue device file in sysfs. When attempt to probe device again, sysfs would complain as below: sysfs: cannot create duplicate filename '/devices/platform/i2c/i2c-0/0-001c/power_supply/adp5061' Call Trace: dump_stack_lvl+0x68/0x85 sysfs_warn_dup.cold+0x1c/0x29 sysfs_create_dir_ns+0x1b1/0x1d0 kobject_add_internal+0x143/0x390 kobject_add+0x108/0x170 Fixes: 80c6463e2fa3 ("power_supply: Fix Oops from NULL pointer dereference from wakeup_source_activate") Signed-off-by: Zeng Heng Signed-off-by: Sebastian Reichel Signed-off-by: Sasha Levin --- drivers/power/supply/power_supply_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c index e43a7b3b570c..9b98921a3b16 100644 --- a/drivers/power/supply/power_supply_core.c +++ b/drivers/power/supply/power_supply_core.c @@ -945,8 +945,8 @@ __power_supply_register(struct device *parent, register_cooler_failed: psy_unregister_thermal(psy); register_thermal_failed: - device_del(dev); wakeup_init_failed: + device_del(dev); device_add_failed: check_supplies_failed: dev_set_name_failed: -- 2.35.1