From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from DB3PR0202CU003.outbound.protection.outlook.com (mail-northeuropeazon11010058.outbound.protection.outlook.com [52.101.84.58]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 07F313822B4 for ; Wed, 7 Oct 2026 12:07:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.84.58 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791374883; cv=fail; b=B1F5uRFSOx8Eb8+OIiW4HB1IvB8esP99v5kOJEvEjocXp+Wu+/w7etsWTHJy5oIuRP/KMNBDutUmnXA/F/D9o8eCSnflDXO2tCarRGVHN4H+43ugO4ZycHxRaJ2hdAeWilgcQkmSGE/+vTsknlMGTOxh0lzFmuu3xPv5uvDvJA0= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791374883; c=relaxed/simple; bh=tnZ3aFt753MSvs+wDfXPtPOOrmnjmwDu+JmJwVedtwQ=; h=From:Date:Subject:Content-Type:Message-Id:References:In-Reply-To: To:Cc:MIME-Version; b=mS8wVJlzwaG8IR/3U2OCUs0/AtiiyUmLE86isVDSYtzJRAAGEV3RenLv/eBothnfNLl6CxMPj+Ho/8eHu0uQNTFo0uV/BDyIrJvnfFLVRSb2I96AX2elbHZ5nK4ZNUycPuB1hW/mQ8NaZ9OtRupCYrK/5Yyq4LKfyPlathxc5Cs= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.nxp.com; spf=pass smtp.mailfrom=oss.nxp.com; dkim=pass (2048-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b=CPz02RoN; arc=fail smtp.client-ip=52.101.84.58 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.nxp.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b="CPz02RoN" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=FNhxOt7J2sEnRE9vP8XaTPfsDVjzwQFa2L2+/jiZpr7VD3Iu7j+j/kwkXHGkuOpZXoGId1kYZXfRmfPydiA2WSEPxkAggBygQGnEAg6ZwaQds5NHvWg4JC7qrvat/eh4MXoqvSMptUFAxw+vha398nuwpP6CXYUDc5WP7LaOM8YF9c4M+epocimEtM6LxbRe5gGF9MGvGaLcbyOzKKcLhZzxubPfL7SgqHyPuQNBL+xEZzYH2uhD2s2bGqCvVwyGLKSv65j7q+ZnS2WqCNsRuECQKOLNrnwE0XLL31EUT8JQXLHXiXh6lGgeWydcB1LH/vO5l2YCeN9gVs8PyFhn2Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=FuiyjZRIhwHzDwxh84fKBjXZ/NgalFSonxRhOSK6Uy4=; b=w6SgYE4qYlefidZM2kapeDmdkSUtByeioNrjS0qszyc4O1oY2GtcTaaMraYk+0G4TgE5AoPdAgIHAM3A6n9U2cQtN4MrtRtILcfdNYlZ1rAkl7kjhcm6y3f2SMeORV5Rb8B0rks6E6o2TSiqOxoT+qmMa8GXzpdFe8f0n+S1QLgYvUjcT3srEQ3inFpL+RNr37PWJkqF6rEixEpd9EYXkNDnDFEKc8CSIllxPEvLeP0xbFYewCexEE3LqiG6D63bVBHmWMtqtWi9YrOkXe0qzvfDBELGx7KzlGLbyIDzpUcbIG2fTdeWAFBi34hiHyh3fl/xNTJooQzcM77Uqn9Nrg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oss.nxp.com; dmarc=pass action=none header.from=oss.nxp.com; dkim=pass header.d=oss.nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=NXP1.onmicrosoft.com; s=selector1-NXP1-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=FuiyjZRIhwHzDwxh84fKBjXZ/NgalFSonxRhOSK6Uy4=; b=CPz02RoNKtmJvX23Z17gEvxTVhJpvK/oZgo4VQQwLa0aH1gxCUsOmdzbowBgHFaw2sieeRB2N2bCqhcHrXHYbi8oCC4R+QoY1Rb3QgmWci9eHnQ8eIHcqQnooR2DWNq9kLxzutwn8JyNxKuVMSblW2eZwwdLw5KB3hJDjLVqG5GV8GwpJNUUVYivrpaKHCwFRquF5nDImB0G7/jiQqM9Lp27Sv+3gIRpf25z9OZ/PGtxVBv29jWOJmLmg164x23QpDQDaTtKwQJXGBs6wtWlKz1Qhw49vn74SKlbMv8XYFafZL1+hOnVsPzFLLSmS0+zajYvWRCj0eSe6pU7yTuXjQ== Authentication-Results: mx.microsoft.com 1; dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=oss.nxp.com; Received: from AM8PR04MB7874.eurprd04.prod.outlook.com (2603:10a6:20b:24d::9) by AM6PPF8C695F6EE.eurprd04.prod.outlook.com (2603:10a6:20f:fff1::a90) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.496.15; Wed, 7 Oct 2026 12:07:26 +0000 Received: from AM8PR04MB7874.eurprd04.prod.outlook.com ([fe80::ac38:1699:6f18:c5d9]) by AM8PR04MB7874.eurprd04.prod.outlook.com ([fe80::ac38:1699:6f18:c5d9%6]) with mapi id 15.21.0451.022; Wed, 7 Oct 2026 12:07:26 +0000 From: "Peng Fan (OSS)" Date: Wed, 07 Oct 2026 20:04:02 +0800 Subject: [PATCH v3 6/7] regmap: debugfs: Use __free(kfree) in regmap_name_read_file() Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261007-regmap-lock-2nd-v3-6-0e590c4125be@nxp.com> References: <20261007-regmap-lock-2nd-v3-0-0e590c4125be@nxp.com> In-Reply-To: <20261007-regmap-lock-2nd-v3-0-0e590c4125be@nxp.com> To: Mark Brown , Greg Kroah-Hartman , "Rafael J. Wysocki" , Danilo Krummrich Cc: linux-kernel@vger.kernel.org, driver-core@lists.linux.dev, Peng Fan X-Mailer: b4 0.15.2 X-ClientProxiedBy: MA5P287CA0025.INDP287.PROD.OUTLOOK.COM (2603:1096:a01:17a::15) To AM8PR04MB7874.eurprd04.prod.outlook.com (2603:10a6:20b:24d::9) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM8PR04MB7874:EE_|AM6PPF8C695F6EE:EE_ X-MS-Office365-Filtering-Correlation-Id: e4d5947f-e49c-49e2-22ef-08df246b8d95 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|376014|366016|19092799006|1800799024|11063799006|10067099003|56012099006|18002099003|22082099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AM8PR04MB7874.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(23010399003)(376014)(366016)(19092799006)(1800799024)(11063799006)(10067099003)(56012099006)(18002099003)(22082099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?NmJRYmdPZUxJdVBNNzh5YktVSHFKamdjOG5oMWJsVlNubTB0ZXgxb3YwRWRh?= =?utf-8?B?endMa1pCNHVSNjlXRHEwN0RRd2Y4alcrMWs1L2FDaTlJRFNybDN4TjEyRml3?= =?utf-8?B?aEprWlJTSzVzRnRZYWV1UHVxTTFrQmVwM2pyQXdzQjkwQ0VCMnIwQ3g5KzBn?= =?utf-8?B?dmVFdGhWM0pmMHZTSmxSQm9CWnAwRzJzQ2sva3NkNytJUWZwWktObWllM2VN?= =?utf-8?B?WEtONnphR1hoQlExVWtkc3RtSHUwQzNvY0hxRUEwOGE5ZXF1akZiSXZBRzVo?= =?utf-8?B?SDVhT0VOa0s4RFRaQXdhSzFmZzhsNnN6SU4wVVp2UEFoMzdPdGkyakMvK1I0?= =?utf-8?B?OHVyWEttckpuSlY0R3FwblF1VURKbXlyRUZKaEZISzg2bGxUcmNRQWV5dDM0?= =?utf-8?B?eXFzUU5PVmlYOFkrMEpGR2J0eUdjbUs3djdlOUNMRHc3U2hwd05rMTJCMlBY?= =?utf-8?B?UUlZNHNTenRmdnhRVjFFRWo1bUdsRUt2TVE0YmQ4SThvaGwyMnVuV09scTds?= =?utf-8?B?ekpGdlAxV0JTMUFVN0lCWnBQemhnUFdpakFjQ2cwZ2hTOG4wSVJDQXFkWmRS?= =?utf-8?B?MkUxYTNuWW9NNXd1c2ZlRW4wUURrYXNpZ0tsM3dUNXZ1SklrUVkzWmYyMW5X?= =?utf-8?B?MlFja3NKcEJ1Vm5uYzVsaUltNTljV1pFVGNUSmZ6RitiRXJibjc5ZE5rREFL?= =?utf-8?B?Rk9nMG1VYVgrUGtRSkVTN1ordldhY1R2VGMrb0ZBeGdHMm1iQUZtSkZqTGlI?= =?utf-8?B?RVZFZ3hCOENiQ2ppUXEyV1lOQzBod0U5L25vdjRQTmVsQzV2NnJudEdzZDd0?= =?utf-8?B?d2lDT3c4QkZGaUZoZzBvQTkyMHJWWHVmancrNkd0d2FORnlhWm8zS0d6bTlY?= =?utf-8?B?OWN5MDhGd1Z0TEJNVDNBcE5zcVZIQVVCWVhHbmlpY0RYZjRKUHVEOStoSW12?= =?utf-8?B?cWtvYVovNXcxNTdhRWNtbkJsOW84Y0o4bFBaR3FoL3hlUW5FRGZyekNNNVAz?= =?utf-8?B?UWd3c0VCODJzSUZEdEJ4VDlOUGgzcmNjR1hoUFB0M205RUUxMmVVeUU1TlM4?= =?utf-8?B?eTVSV29GbVFWV1YxZDRzUnJJMGplTDFIUzV2SThCQTk2ejU5ZFNRNzdveW0w?= =?utf-8?B?emRWTmxVNVcxT0tITmF4MU82S3FtT1A5a1ptRFFTVW5qc3dDT2Y4N3czdHMx?= =?utf-8?B?Yk83cGNwQkhlRDQ2aE5XN0Ryc0JXeEpGaUNVNENNdG80THo0ZTkvMTNrSjJk?= =?utf-8?B?U1BMS0cwYUtNWjJtZUx4WnNKUitraUlUM1NuTk1sdWV0eWlzeDhyRWlhKytv?= =?utf-8?B?OXR1eldpV1JHQTVEazhlRys3MHZGNTExNVVmamF3WWRmZEFYU2xxcTNkei9G?= =?utf-8?B?QnhqU2FpZU9OMVNFQ0RRZThMeGRmOUtCM2x1TkdXZmlZQnVuME5Bc3E0Lzh1?= =?utf-8?B?aXZWRVUzOEc4VkFYVFh5bm1oMnBLRFZLQm0wcmowcXFDemZEb0dpQ2kwRERU?= =?utf-8?B?aTRrU05CK3R6eC9leVV6eW5IS0Vua0orYWlJek5saFp5UzNOWG1kMzhLdHZS?= =?utf-8?B?Z2VSTy9DUC9kWGlsYWkyY0hLTENHVlJVRGRIbEQ2QTI1ZnpZbjFPaU5ZMndC?= =?utf-8?B?WWJacDBsTEQyanNBQVkzSzNHUkphTi8yY0c0Tncrem14c29lTFJGUnZMazFO?= =?utf-8?B?YUZDUnAxSjhSQmJ0Qzc3QnNEMm56cGpkbTZ0UkYwRm1BdXhYSlRaaUVCcWVV?= =?utf-8?B?bStpQVVaZnRudmRoYzdJSnhYcUxyUXNrRTBHN1NsM3JmMVdsNGRRV1dkSlk0?= =?utf-8?B?UkRhNWhNNjNPMkF2UmlWUW9GeTQ0MXdQSzdkbC90TDVsM1c3RXBPclBrUVo3?= =?utf-8?B?Z0kyOWNrT3pXM3g0MmV3SkJTNUluWmFsVm1RQ3dONmU2V1RldEI5cGI3bmRz?= =?utf-8?B?THhuTTl1Ry9pTUFrV3dKNTBvLzhzOEE3MkZRZzkySFZ2dEZkdzVERjJEVTRk?= =?utf-8?B?OUQvaittVFkxc3BNbUlreWtmMngrL2VxVnNpRTdFTnZWZkhNWGJ4YzZ6TS9X?= =?utf-8?B?RVhmK2ZUTE8vam90WGxTbEtObFQyUmFFQlFtbFBxajBHYk5TMkhRMXFzQ21B?= =?utf-8?B?dDY5aDlQUUgwR09RM0ozOGxNMno3dTUvMVlvWnBXbFMvK21JRnViUjlHbkxJ?= =?utf-8?B?TXJyZWdMRHp5SlJJWE5uNXI4M2NDZzFHZTRLYkpqQnErUlNHbUpyeG9FYlB1?= =?utf-8?B?RGhUMGI2VDRVd0lNZThwRUlZSUNYVjJiYUJPaXJXVzU5RlNXY2pGR1JNL0tp?= =?utf-8?B?d2t3QW1jamwxaEhkcjVCMjcvc3ZIZnpuUGN4RVRDMWhOdXNFK3NHZGpJMzFa?= =?utf-8?Q?r3Nagu+FNTbx9oKHVF9CGpQttNqzLIcbmcOaX?= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: e4d5947f-e49c-49e2-22ef-08df246b8d95 X-MS-Exchange-CrossTenant-AuthSource: AM8PR04MB7874.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Oct 2026 12:07:26.7890 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: wbRiUGI15HM+zfQyDNFs9Nm5T3zduOFKrFoSy6BpNJ6xlOT4M9Bj42+xUe19J5ilCeN3dmYTqdG+8TOBccuVBArM7zFz1nC6j3ZO9SCwfn8aI81uNBY5Yc4pF4TxmwkY X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PPF8C695F6EE From: Peng Fan Use the __free(kfree) cleanup helper for the temporary buffer allocated by regmap_name_read_file(). Remove the explicit kfree() calls from the error and success paths. No functional change. Signed-off-by: Peng Fan --- drivers/base/regmap/regmap-debugfs.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index ec207548a6bb..0a9c27426f15 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -38,10 +38,9 @@ static ssize_t regmap_name_read_file(struct file *file, { struct regmap *map = file->private_data; const char *name = "nodev"; + char *buf __free(kfree) = kmalloc(PAGE_SIZE, GFP_KERNEL); int ret; - char *buf; - buf = kmalloc(PAGE_SIZE, GFP_KERNEL); if (!buf) return -ENOMEM; @@ -49,14 +48,10 @@ static ssize_t regmap_name_read_file(struct file *file, name = map->dev->driver->name; ret = snprintf(buf, PAGE_SIZE, "%s\n", name); - if (ret >= PAGE_SIZE) { - kfree(buf); + if (ret >= PAGE_SIZE) return ret; - } - ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); - kfree(buf); - return ret; + return simple_read_from_buffer(user_buf, count, ppos, buf, ret); } static const struct file_operations regmap_name_fops = { -- 2.51.0