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-lk...) 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: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