tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: dd81e1c7d5fb126e5fbc5c9e334d7b3ec29a16a0 commit: 0bb12606c05fe9737e3056fe76d6e4b9c2a87b57 iio:dac:ad7293: add support for AD7293 config: nios2-randconfig-m031-20220124 (https://download.01.org/0day-ci/archive/20220124/202201241944.dodYYcTk-lk...) compiler: nios2-linux-gcc (GCC) 11.2.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com&gt; smatch warnings: drivers/iio/dac/ad7293.c:524 ad7293_read_raw() error: uninitialized symbol 'data'. vim +/data +524 drivers/iio/dac/ad7293.c 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 510 if (ret) 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 511 return ret; 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 512 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 513 *val = data; 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 514 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 515 return IIO_VAL_INT; 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 516 case IIO_CHAN_INFO_OFFSET: 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 517 switch (chan->type) { 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 518 case IIO_VOLTAGE: 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 519 if (chan->output) { 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 520 ret = ad7293_get_offset(st, 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 521 chan->channel + AD7293_VOUT_MIN_OFFSET_CH, 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 522 &data); ad7293_get_offset() can fail 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 523 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 @524 data = FIELD_GET(AD7293_REG_VOUT_OFFSET_MSK, data); 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 525 } else { 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 526 ret = ad7293_get_offset(st, chan->channel, &data); 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 527 } 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 528 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 529 break; 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 530 case IIO_CURRENT: 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 531 ret = ad7293_get_offset(st, 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 532 chan->channel + AD7293_ISENSE_MIN_OFFSET_CH, 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 533 &data); 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 534 0bb12606c05fe9 Antoniu Miclaus 2021-12-02 535 break; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org