tree: https://github.com/omap-audio/linux-audio peter/linux-next-wip head: 616dbf432c14c411575f7d278d2215534464e632 commit: 384dab064b9e80bfba455bc3c54b12acb4fd1d22 [45/94] ASoC: Initial driver for TAS2555 Smart Amplifier config: i386-randconfig-r013-20201213 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://github.com/omap-audio/linux-audio/commit/384dab064b9e80bfba455bc3... git remote add omap-audio https://github.com/omap-audio/linux-audio git fetch --no-tags omap-audio peter/linux-next-wip git checkout 384dab064b9e80bfba455bc3c54b12acb4fd1d22 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): sound/soc/codecs/tas2555.c: In function 'tas2555_read': 96 | int ret; | ^~~ vim +/ret +96 sound/soc/codecs/tas2555.c 90 91 static unsigned int tas2555_read(struct snd_soc_component *component, 92 unsigned int reg) 93 { 94 struct tas2555_priv *tas2555 = snd_soc_component_get_drvdata(component); 95 unsigned int value = 0; 97 98 dev_dbg(component->dev, "%s: BOOK:PAGE:REG %u:%u:%u\n", __func__, 99 TAS2555_BOOK_ID(reg), TAS2555_PAGE_ID(reg), 100 TAS2555_PAGE_REG(reg)); 101 tas2555_change_book(tas2555, TAS2555_BOOK_ID(reg)); 102 ret = regmap_read(tas2555->regmap, TAS2555_BOOK_REG(reg), &value); 103 return value; 104 } 105 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org