linux-kernel - [intel-tdx:guest-rebased 120/133] drivers/acpi/svkl.c:164 acpi_svkl_init() warn: '&acpi_svkl

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <202202160009.rI543Li4-lkp@intel.com>
Date:   Thu, 17 Feb 2022 16:54:17 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     kbuild@...ts.01.org,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
Cc:     lkp@...el.com, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Subject: [intel-tdx:guest-rebased 120/133] drivers/acpi/svkl.c:164
 acpi_svkl_init() warn: '&acpi_svkl_dev' not released on lines: 157.

tree:   https://github.com/intel/tdx.git guest-rebased
head:   36c91f6d572820e8556972fd7644bd96798e85d6
commit: 370c68664d53ff13dbd36847e140df02364387a5 [120/133] ACPI: Add SVKL table support
config: x86_64-randconfig-m001-20220214 (https://download.01.org/0day-ci/archive/20220216/202202160009.rI543Li4-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
Reported-by: Dan Carpenter <dan.carpenter@...cle.com>

smatch warnings:
drivers/acpi/svkl.c:164 acpi_svkl_init() warn: '&acpi_svkl_dev' not released on lines: 157.

vim +164 drivers/acpi/svkl.c

370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  140  static int __init acpi_svkl_init(void)
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  141  {
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  142  	acpi_status status = AE_OK;
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  143  	int ret;
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  144  
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  145  	ret = misc_register(&acpi_svkl_dev);
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  146  	if (ret) {
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  147  		pr_err("SVKL: can't misc_register on minor=%d\n",
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  148  		       MISC_DYNAMIC_MINOR);
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  149  		return ret;
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  150  	}
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  151  
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  152  	mutex_init(&svkl_lock);
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  153  
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  154  	status = acpi_get_table(ACPI_SIG_SVKL, 0, &svkl_tbl_hdr);
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  155  	if (ACPI_FAILURE(status) || !svkl_tbl_hdr) {
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  156  		pr_err("get table failed\n");

No misc_unregister()

370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  157  		return -ENODEV;
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  158  	}
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  159  
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  160  	dump_svkl_header();
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  161  
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  162  	pr_info("ACPI: SVKL module loaded\n");
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  163  
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 @164  	return 0;
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19  165  }

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org