Hi Yasin, kernel test robot noticed the following build warnings: https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Yasin-Lee/iio-proximity-hx9023s-Add-TYHX-HX9023S-sensor-driver/20240607-194446 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg patch link: https://lore.kernel.org/r/SN7PR12MB81017291E79E6B61A8DEC9A5A4FB2%40SN7PR12MB8101.namprd12.prod.outlook.com patch subject: [PATCH v4 2/2] iio:proximity:hx9023s: Add TYHX HX9023S sensor driver config: um-randconfig-r071-20240614 (https://download.01.org/0day-ci/archive/20240614/202406142001.swm6CU40-lkp@xxxxxxxxx/config) compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0 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> | Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> | Closes: https://lore.kernel.org/r/202406142001.swm6CU40-lkp@xxxxxxxxx/ New smatch warnings: drivers/iio/proximity/hx9023s.c:666 hx9023s_property_get() error: uninitialized symbol 'i'. drivers/iio/proximity/hx9023s.c:976 hx9023s_trigger_handler() error: uninitialized symbol 'i'. drivers/iio/proximity/hx9023s.c:996 hx9023s_buffer_preenable() error: uninitialized symbol 'channels'. Old smatch warnings: drivers/iio/proximity/hx9023s.c:667 hx9023s_property_get() error: uninitialized symbol 'i'. vim +/i +666 drivers/iio/proximity/hx9023s.c 6133aa711518da Yasin Lee 2024-06-07 650 static int hx9023s_property_get(struct hx9023s_data *data) 6133aa711518da Yasin Lee 2024-06-07 651 { 6133aa711518da Yasin Lee 2024-06-07 652 int ret, i; Needs to be initialized. int i = 0; 6133aa711518da Yasin Lee 2024-06-07 653 u32 temp; 6133aa711518da Yasin Lee 2024-06-07 654 struct fwnode_handle *child; 6133aa711518da Yasin Lee 2024-06-07 655 struct device *dev = regmap_get_device(data->regmap); 6133aa711518da Yasin Lee 2024-06-07 656 6133aa711518da Yasin Lee 2024-06-07 657 ret = device_property_read_u32(dev, "channel-in-use", &temp); 6133aa711518da Yasin Lee 2024-06-07 658 if (ret) 6133aa711518da Yasin Lee 2024-06-07 659 return dev_err_probe(dev, ret, "Failed to read channel-in-use property\n"); 6133aa711518da Yasin Lee 2024-06-07 660 data->chan_in_use = temp; 6133aa711518da Yasin Lee 2024-06-07 661 6133aa711518da Yasin Lee 2024-06-07 662 device_for_each_child_node(dev, child) { 6133aa711518da Yasin Lee 2024-06-07 663 ret = fwnode_property_read_u32(child, "channel-positive", &temp); 6133aa711518da Yasin Lee 2024-06-07 664 if (ret) 6133aa711518da Yasin Lee 2024-06-07 665 return dev_err_probe(dev, ret, 6133aa711518da Yasin Lee 2024-06-07 @666 "Failed to read channel-positive for channel %d\n", i); 6133aa711518da Yasin Lee 2024-06-07 667 data->ch_data[i].channel_positive = temp; 6133aa711518da Yasin Lee 2024-06-07 668 6133aa711518da Yasin Lee 2024-06-07 669 ret = fwnode_property_read_u32(child, "channel-negative", &temp); 6133aa711518da Yasin Lee 2024-06-07 670 if (ret) 6133aa711518da Yasin Lee 2024-06-07 671 return dev_err_probe(dev, ret, 6133aa711518da Yasin Lee 2024-06-07 672 "Failed to read channel-negative for channel %d\n", i); 6133aa711518da Yasin Lee 2024-06-07 673 data->ch_data[i].channel_negative = temp; 6133aa711518da Yasin Lee 2024-06-07 674 6133aa711518da Yasin Lee 2024-06-07 675 i++; 6133aa711518da Yasin Lee 2024-06-07 676 } 6133aa711518da Yasin Lee 2024-06-07 677 6133aa711518da Yasin Lee 2024-06-07 678 return 0; 6133aa711518da Yasin Lee 2024-06-07 679 } -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
