Hi ChiaEn, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on jic23-iio/togreg] [also build test WARNING on linus/master v6.3-rc3 next-20230324] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/ChiaEn-Wu/iio-adc-mt6370-Fix-ibus-and-ibat-scaling-value-of-some-specific-vendor-ID-chips/20230324-221545 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg patch link: https://lore.kernel.org/r/1679667167-16261-1-git-send-email-chiaen_wu%40richtek.com patch subject: [PATCH] iio: adc: mt6370: Fix ibus and ibat scaling value of some specific vendor ID chips config: riscv-randconfig-r034-20230324 (https://download.01.org/0day-ci/archive/20230325/202303250050.V7JLIADZ-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/9822359d5de2dba531d882cfee6949864a2d6170 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review ChiaEn-Wu/iio-adc-mt6370-Fix-ibus-and-ibat-scaling-value-of-some-specific-vendor-ID-chips/20230324-221545 git checkout 9822359d5de2dba531d882cfee6949864a2d6170 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/iio/adc/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303250050.V7JLIADZ-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/iio/adc/mt6370-adc.c:306:31: warning: variable 'priv' is uninitialized when used here [-Wuninitialized] ret = mt6370_get_vendor_info(priv); ^~~~ drivers/iio/adc/mt6370-adc.c:297:30: note: initialize the variable 'priv' to silence this warning struct mt6370_adc_data *priv; ^ = NULL 1 warning generated. vim +/priv +306 drivers/iio/adc/mt6370-adc.c 293 294 static int mt6370_adc_probe(struct platform_device *pdev) 295 { 296 struct device *dev = &pdev->dev; 297 struct mt6370_adc_data *priv; 298 struct iio_dev *indio_dev; 299 struct regmap *regmap; 300 int ret; 301 302 regmap = dev_get_regmap(pdev->dev.parent, NULL); 303 if (!regmap) 304 return dev_err_probe(dev, -ENODEV, "Failed to get regmap\n"); 305 > 306 ret = mt6370_get_vendor_info(priv); 307 if (ret) 308 return dev_err_probe(dev, ret, "Failed to get vid\n"); 309 310 indio_dev = devm_iio_device_alloc(dev, sizeof(*priv)); 311 if (!indio_dev) 312 return -ENOMEM; 313 314 priv = iio_priv(indio_dev); 315 priv->dev = dev; 316 priv->regmap = regmap; 317 mutex_init(&priv->adc_lock); 318 319 ret = regmap_write(priv->regmap, MT6370_REG_CHG_ADC, 0); 320 if (ret) 321 return dev_err_probe(dev, ret, "Failed to reset ADC\n"); 322 323 indio_dev->name = "mt6370-adc"; 324 indio_dev->info = &mt6370_adc_iio_info; 325 indio_dev->modes = INDIO_DIRECT_MODE; 326 indio_dev->channels = mt6370_adc_channels; 327 indio_dev->num_channels = ARRAY_SIZE(mt6370_adc_channels); 328 329 return devm_iio_device_register(dev, indio_dev); 330 } 331 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
