Hi Dzmitry, kernel test robot noticed the following build warnings:
[auto build test WARNING on 6906a84c482f098d31486df8dc98cead21cce2d0] url: https://github.com/intel-lab-lkp/linux/commits/Dzmitry-Sankouski/power-supply-add-undervoltage-health-status-property/20240618-222456 base: 6906a84c482f098d31486df8dc98cead21cce2d0 patch link: https://lore.kernel.org/r/20240618-starqltechn_integration_upstream-v3-17-e3f6662017ac%40gmail.com patch subject: [PATCH v3 17/23] mfd: add s2dos series core driver config: mips-allyesconfig (https://download.01.org/0day-ci/archive/20240622/202406220455.upxnyphg-...@intel.com/config) compiler: mips-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240622/202406220455.upxnyphg-...@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202406220455.upxnyphg-...@intel.com/ All warnings (new ones prefixed by >>): drivers/mfd/s2dos-core.c: In function 's2dos05_i2c_probe': >> drivers/mfd/s2dos-core.c:88:13: warning: variable 'ret' set but not used >> [-Wunused-but-set-variable] 88 | int ret = 0; | ^~~ vim +/ret +88 drivers/mfd/s2dos-core.c 79 80 81 static int s2dos05_i2c_probe(struct i2c_client *i2c) 82 { 83 struct s2dos_core *s2dos05; 84 struct regmap *regmap; 85 struct device *dev = &i2c->dev; 86 87 unsigned int reg_data; > 88 int ret = 0; 89 90 s2dos05 = kzalloc(sizeof(struct s2dos_core), GFP_KERNEL); 91 if (!s2dos05) 92 return -ENOMEM; 93 94 regmap = devm_regmap_init_i2c(i2c, &s2dos05_regmap_config); 95 if (IS_ERR(regmap)) { 96 dev_err(dev, "Unable to initialise I2C Regmap\n"); 97 return PTR_ERR(regmap); 98 } 99 s2dos05->regmap = regmap; 100 101 if (regmap_read(regmap, S2DOS05_REG_DEV_ID, ®_data) < 0) { 102 dev_err(dev, 103 "device not found on this channel (this is not an error)\n"); 104 ret = -ENODEV; 105 } else { 106 dev_info(dev, "%s device found with id: .0x%x\n", 107 __func__, reg_data); 108 } 109 110 i2c_set_clientdata(i2c, s2dos05); 111 112 debugfs_file = debugfs_create_file("s2dos05-regs", 113 0664, NULL, (void *)s2dos05, 114 &s2dos05_debugfs_fops); 115 if (!debugfs_file) 116 dev_err(dev, "Failed to create debugfs file\n"); 117 118 return mfd_add_devices(dev, -1, s2dos05_devs, 119 ARRAY_SIZE(s2dos05_devs), NULL, 0, NULL); 120 } 121 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
