Hi Lucas,

I love your patch! Perhaps something to improve:

[auto build test WARNING on broonie-sound/for-next] [also build test WARNING on tiwai-sound/for-next tiwai-sound/for-linus linus/master v6.2-rc7 next-20230208] [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/Lucas-Tanure/ALSA-cs35l41-Add... base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next patch link: https://lore.kernel.org/r/20230207104021.2842-2-lucas.tanure%40collabora.com patch subject: [PATCH 1/2] ALSA: cs35l41: Add shared boost feature config: i386-randconfig-a011 (https://download.01.org/0day-ci/archive/20230208/202302081911.MDwfUTfx-lkp@i...) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) 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 # https://github.com/intel-lab-lkp/linux/commit/c1726800667180cd46986c3578e635... git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Lucas-Tanure/ALSA-cs35l41-Add-shared-boost-feature/20230207-184238 git checkout c1726800667180cd46986c3578e635bafa8bf01a # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash sound/soc/codecs/

If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot lkp@intel.com

All warnings (new ones prefixed by >>):

...

sound/soc/codecs/cs35l41-lib.c:1160:7: warning: variable 'ret' is used uninitialized whenever switch case is taken [-Wsometimes-uninitialized]

case CS35L41_SHD_BOOST_PASS: ^~~~~~~~~~~~~~~~~~~~~~ sound/soc/codecs/cs35l41-lib.c:1169:9: note: uninitialized use occurs here return ret; ^~~ sound/soc/codecs/cs35l41-lib.c:1136:9: note: initialize the variable 'ret' to silence this warning int ret; ^ = 0 1 warning generated.

vim +/ret +1160 sound/soc/codecs/cs35l41-lib.c

1132 1133 int cs35l41_init_boost(struct device *dev, struct regmap *regmap, 1134 struct cs35l41_hw_cfg *hw_cfg) 1135 { 1136 int ret; 1137 1138 switch (hw_cfg->bst_type) { 1139 case CS35L41_SHD_BOOST_ACTV: 1140 regmap_multi_reg_write(regmap, cs35l41_actv_seq, ARRAY_SIZE(cs35l41_actv_seq)); 1141 fallthrough; 1142 case CS35L41_INT_BOOST: 1143 ret = cs35l41_boost_config(dev, regmap, hw_cfg->bst_ind, 1144 hw_cfg->bst_cap, hw_cfg->bst_ipk); 1145 if (ret) 1146 dev_err(dev, "Error in Boost DT config: %d\n", ret); 1147 break; 1148 case CS35L41_EXT_BOOST: 1149 case CS35L41_EXT_BOOST_NO_VSPK_SWITCH: 1150 /* Only CLSA0100 doesn't use GPIO as VSPK switch, but even on that laptop we can 1151 * toggle GPIO1 as is not connected to anything. 1152 * There will be no other device without VSPK switch. 1153 */ 1154 regmap_write(regmap, CS35L41_GPIO1_CTRL1, 0x00000001); 1155 regmap_multi_reg_write(regmap, cs35l41_reset_to_safe, 1156 ARRAY_SIZE(cs35l41_reset_to_safe)); 1157 ret = regmap_update_bits(regmap, CS35L41_PWR_CTRL2, CS35L41_BST_EN_MASK, 1158 CS35L41_BST_DIS_FET_OFF << CS35L41_BST_EN_SHIFT); 1159 break;

1160 case CS35L41_SHD_BOOST_PASS:

1161 regmap_multi_reg_write(regmap, cs35l41_pass_seq, ARRAY_SIZE(cs35l41_pass_seq)); 1162 break; 1163 default: 1164 dev_err(dev, "Boost type %d not supported\n", hw_cfg->bst_type); 1165 ret = -EINVAL; 1166 break; 1167 } 1168 1169 return ret; 1170 } 1171 EXPORT_SYMBOL_GPL(cs35l41_init_boost); 1172