tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 18030226a48de1fbfabf4ae16aaa2695a484254f commit: 33ec3e5fc1ea0e0c5c93425170602533c07f55d4 [4152/8345] iio: adc: adding support for MCP3564 ADC config: x86_64-randconfig-161-20230927 (https://download.01.org/0day-ci/archive/20230928/202309280738.NWjVfVt4-lkp@xxxxxxxxx/config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce: (https://download.01.org/0day-ci/archive/20230928/202309280738.NWjVfVt4-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202309280738.NWjVfVt4-lkp@xxxxxxxxx/ smatch warnings: drivers/iio/adc/mcp3564.c:1105 mcp3564_fill_scale_tbls() warn: unsigned '__x' is never less than zero. drivers/iio/adc/mcp3564.c:1426 mcp3564_probe() warn: passing zero to 'PTR_ERR' drivers/iio/adc/mcp3564.c:1426 mcp3564_probe() warn: address of NULL pointer 'indio_dev' vim +/__x +1105 drivers/iio/adc/mcp3564.c 1094 1095 static void mcp3564_fill_scale_tbls(struct mcp3564_state *adc) 1096 { 1097 unsigned int pow = adc->chip_info->resolution - 1; 1098 int ref; 1099 unsigned int i; 1100 int tmp0; 1101 u64 tmp1; 1102 1103 for (i = 0; i < MCP3564_MAX_PGA; i++) { 1104 ref = adc->vref_mv; > 1105 tmp1 = shift_right((u64)ref * NANO, pow); 1106 div_u64_rem(tmp1, NANO, &tmp0); 1107 1108 tmp1 = tmp1 * mcp3564_hwgain_frac[(2 * i) + 1]; 1109 tmp0 = (int)div_u64(tmp1, mcp3564_hwgain_frac[2 * i]); 1110 1111 adc->scale_tbls[i][1] = tmp0; 1112 } 1113 } 1114 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
