tree: https://github.com/intel/tdx.git guest head: 8c20c364d1f52e432181d142054b1c2efa0ae6d3 commit: 62c2d9fae275d5bf50f869e8cfb71d2ca1f71363 [51/63] ACPI: Add SVKL table support config: x86_64-randconfig-m001-20210513 (attached as .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(a)intel.com&gt; Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com&gt; smatch warnings: drivers/acpi/svkl.c:165 acpi_svkl_init() warn: '&acpi_svkl_dev' not released on lines: 158. vim +165 drivers/acpi/svkl.c 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 141 static int __init acpi_svkl_init(void) 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 142 { 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 143 acpi_status status = AE_OK; 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 144 int ret; 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 145 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 146 ret = misc_register(&acpi_svkl_dev); 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 147 if (ret) { 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 148 pr_err("SVKL: can't misc_register on minor=%d\n", 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 149 MISC_DYNAMIC_MINOR); 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 150 return ret; 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 151 } 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 152 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 153 mutex_init(&svkl_lock); 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 154 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 155 status = acpi_get_table(ACPI_SIG_SVKL, 0, &svkl_tbl_hdr); 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 156 if (ACPI_FAILURE(status) || !svkl_tbl_hdr) { 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 157 pr_err("get table failed\n"); 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 158 return -ENODEV; Static checker expected misc_unregister() before the return. 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 159 } 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 160 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 161 dump_svkl_header(); 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 162 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 163 pr_info("ACPI: SVKL module loaded\n"); 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 164 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 @165 return 0; 62c2d9fae275d5 Kuppuswamy Sathyanarayanan 2020-06-19 166 } --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org