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[2620:137:e000::3:4]) by mx.google.com with ESMTPS id a5-20020a655c85000000b0056f7f18bbfdsi173380pgt.632.2023.09.13.16.35.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Sep 2023 16:35:08 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:4 as permitted sender) client-ip=2620:137:e000::3:4; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b="CWhMvJt/"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:4 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by howler.vger.email (Postfix) with ESMTP id C5986834A9D7; Wed, 13 Sep 2023 02:27:13 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at howler.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239318AbjIMJ1M (ORCPT + 36 others); Wed, 13 Sep 2023 05:27:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33558 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239259AbjIMJ1L (ORCPT ); Wed, 13 Sep 2023 05:27:11 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E8445199E; Wed, 13 Sep 2023 02:27:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1694597227; x=1726133227; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=jWur+JX9CJPEdIOhhwD8UkpAw5f715+nAiJqnxYPswY=; b=CWhMvJt/BmdxMJT1BxTe6I5ZLpmsdey+f7kaN8kPU1A1GiHK/vqg/r9w 0jxMGDZGhqWqWahQQS1kVSJsO2f67vz1LGfa1AzHG/1Gq7UY0bK6JS7s/ RmacgYmw7djStn0Y7q94+V5vcO2OFc3iXvswOkznbHsuxlSVKDqvravV7 OFDlstJ8QHjHaWMU3YcXPNrrgZjofr/3eZroCXbvdXh6MnLaINgBVm6ZA ghSQP0BuGgKdzy6aArLSwkr5FJIkMYV6kWf3xmqTGKlNSUJVMYk5pPV14 82z2btdfjMF8zujclpJG+dq83wWnKC/Zg/x1x+UFCUoRLpR4kW5jB4/MR A==; X-IronPort-AV: E=McAfee;i="6600,9927,10831"; a="464979127" X-IronPort-AV: E=Sophos;i="6.02,142,1688454000"; d="scan'208";a="464979127" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Sep 2023 02:27:07 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10831"; a="867717321" X-IronPort-AV: E=Sophos;i="6.02,142,1688454000"; d="scan'208";a="867717321" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga004.jf.intel.com with ESMTP; 13 Sep 2023 02:27:04 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id A3A331E5; Wed, 13 Sep 2023 12:27:03 +0300 (EEST) From: Andy Shevchenko To: Hans de Goede , Mark Pearson , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mark Pearson , Mark Gross , Andy Shevchenko Subject: [PATCH v1 1/2] platform/x86: think-lmi: Replace kstrdup() + strreplace() with kstrdup_and_replace() Date: Wed, 13 Sep 2023 12:27:00 +0300 Message-Id: <20230913092701.440959-1-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1.gaa8946217a0b MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (howler.vger.email [0.0.0.0]); Wed, 13 Sep 2023 02:27:13 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1776929056622020801 X-GMAIL-MSGID: 1776967335218986189 Replace open coded functionalify of kstrdup_and_replace() with a call. Signed-off-by: Andy Shevchenko Reviewed-by: Ilpo Järvinen --- drivers/platform/x86/think-lmi.c | 43 +++++++++++--------------------- 1 file changed, 15 insertions(+), 28 deletions(-) diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index 79346881cadb..94a3c7a74bc4 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -15,7 +15,7 @@ #include #include #include -#include +#include #include #include #include @@ -432,13 +432,11 @@ static ssize_t new_password_store(struct kobject *kobj, if (!tlmi_priv.can_set_bios_password) return -EOPNOTSUPP; - new_pwd = kstrdup(buf, GFP_KERNEL); + /* Strip out CR if one is present, setting password won't work if it is present */ + new_pwd = kstrdup_and_replace(buf, '\n', '\0', GFP_KERNEL); if (!new_pwd) return -ENOMEM; - /* Strip out CR if one is present, setting password won't work if it is present */ - strip_cr(new_pwd); - /* Use lock in case multiple WMI operations needed */ mutex_lock(&tlmi_mutex); @@ -709,13 +707,11 @@ static ssize_t cert_to_password_store(struct kobject *kobj, if (!setting->signature || !setting->signature[0]) return -EACCES; - passwd = kstrdup(buf, GFP_KERNEL); + /* Strip out CR if one is present */ + passwd = kstrdup_and_replace(buf, '\n', '\0', GFP_KERNEL); if (!passwd) return -ENOMEM; - /* Strip out CR if one is present */ - strip_cr(passwd); - /* Format: 'Password,Signature' */ auth_str = kasprintf(GFP_KERNEL, "%s,%s", passwd, setting->signature); if (!auth_str) { @@ -765,11 +761,10 @@ static ssize_t certificate_store(struct kobject *kobj, return ret ?: count; } - new_cert = kstrdup(buf, GFP_KERNEL); + /* Strip out CR if one is present */ + new_cert = kstrdup_and_replace(buf, '\n', '\0', GFP_KERNEL); if (!new_cert) return -ENOMEM; - /* Strip out CR if one is present */ - strip_cr(new_cert); if (setting->cert_installed) { /* Certificate is installed so this is an update */ @@ -817,13 +812,11 @@ static ssize_t signature_store(struct kobject *kobj, if (!tlmi_priv.certificate_support) return -EOPNOTSUPP; - new_signature = kstrdup(buf, GFP_KERNEL); + /* Strip out CR if one is present */ + new_signature = kstrdup_and_replace(buf, '\n', '\0', GFP_KERNEL); if (!new_signature) return -ENOMEM; - /* Strip out CR if one is present */ - strip_cr(new_signature); - /* Free any previous signature */ kfree(setting->signature); setting->signature = new_signature; @@ -846,13 +839,11 @@ static ssize_t save_signature_store(struct kobject *kobj, if (!tlmi_priv.certificate_support) return -EOPNOTSUPP; - new_signature = kstrdup(buf, GFP_KERNEL); + /* Strip out CR if one is present */ + new_signature = kstrdup_and_replace(buf, '\n', '\0', GFP_KERNEL); if (!new_signature) return -ENOMEM; - /* Strip out CR if one is present */ - strip_cr(new_signature); - /* Free any previous signature */ kfree(setting->save_signature); setting->save_signature = new_signature; @@ -985,13 +976,11 @@ static ssize_t current_value_store(struct kobject *kobj, if (!tlmi_priv.can_set_bios_settings) return -EOPNOTSUPP; - new_setting = kstrdup(buf, GFP_KERNEL); + /* Strip out CR if one is present */ + new_setting = kstrdup_and_replace(buf, '\n', '\0', GFP_KERNEL); if (!new_setting) return -ENOMEM; - /* Strip out CR if one is present */ - strip_cr(new_setting); - /* Use lock in case multiple WMI operations needed */ mutex_lock(&tlmi_mutex); @@ -1163,13 +1152,11 @@ static ssize_t debug_cmd_store(struct kobject *kobj, struct kobj_attribute *attr if (!tlmi_priv.can_debug_cmd) return -EOPNOTSUPP; - new_setting = kstrdup(buf, GFP_KERNEL); + /* Strip out CR if one is present */ + new_setting = kstrdup_and_replace(buf, '\n', '\0', GFP_KERNEL); if (!new_setting) return -ENOMEM; - /* Strip out CR if one is present */ - strip_cr(new_setting); - if (tlmi_priv.pwd_admin->valid && tlmi_priv.pwd_admin->password[0]) { auth_str = kasprintf(GFP_KERNEL, "%s,%s,%s;", tlmi_priv.pwd_admin->password,