Hi Gene, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on pavel-linux-leds/for-next] [also build test WARNING on robh/for-next linus/master v5.10 next-20201215] [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] url: https://github.com/0day-ci/linux/commits/Gene-Chen/leds-mt6360-Add-LED-driver-for-MT6360/20201210-140617 base: git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds.git for-next config: x86_64-randconfig-m001-20201215 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> smatch warnings: drivers/leds/leds-mt6360.c:778 mt6360_led_probe() warn: always true condition '(reg >= 0) => (0-u32max >= 0)' vim +778 drivers/leds/leds-mt6360.c 714 715 static int mt6360_led_probe(struct platform_device *pdev) 716 { 717 struct mt6360_priv *priv; 718 struct fwnode_handle *child; 719 size_t count; 720 int i = 0, ret; 721 722 count = device_get_child_node_count(&pdev->dev); 723 if (!count || count > MT6360_MAX_LEDS) { 724 dev_err(&pdev->dev, "No child node or node count over max led number %lu\n", count); 725 return -EINVAL; 726 } 727 728 priv = devm_kzalloc(&pdev->dev, struct_size(priv, leds, count), GFP_KERNEL); 729 if (!priv) 730 return -ENOMEM; 731 732 priv->leds_count = count; 733 priv->dev = &pdev->dev; 734 mutex_init(&priv->lock); 735 736 priv->regmap = dev_get_regmap(pdev->dev.parent, NULL); 737 if (!priv->regmap) { 738 dev_err(&pdev->dev, "Failed to get parent regmap\n"); 739 return -ENODEV; 740 } 741 742 device_for_each_child_node(&pdev->dev, child) { 743 struct mt6360_led *led = priv->leds + i; 744 struct led_init_data init_data = { .fwnode = child, }; 745 u32 reg, led_color; 746 747 ret = fwnode_property_read_u32(child, "color", &led_color); 748 if (ret) 749 goto out_flash_release; 750 751 if (led_color == LED_COLOR_ID_RGB || led_color == LED_COLOR_ID_MULTI) 752 reg = MT6360_VIRTUAL_MULTICOLOR; 753 else { 754 ret = fwnode_property_read_u32(child, "reg", ®); 755 if (ret) 756 goto out_flash_release; 757 758 if (reg >= MT6360_MAX_LEDS) { 759 ret = -EINVAL; 760 goto out_flash_release; 761 } 762 } 763 764 if (priv->leds_active & BIT(reg)) { 765 ret = -EINVAL; 766 goto out_flash_release; 767 } 768 priv->leds_active |= BIT(reg); 769 770 led->led_no = reg; 771 led->priv = priv; 772 773 ret = mt6360_init_common_properties(led, &init_data); 774 if (ret) 775 goto out_flash_release; 776 777 if (reg == MT6360_VIRTUAL_MULTICOLOR || > 778 (reg >= MT6360_LED_ISNK1 && reg <= MT6360_LED_ISNKML)) 779 ret = mt6360_init_isnk_properties(led, &init_data); 780 else 781 ret = mt6360_init_flash_properties(led, &init_data); 782 783 if (ret) 784 goto out_flash_release; 785 786 ret = mt6360_led_register(&pdev->dev, led, &init_data); 787 if (ret) 788 goto out_flash_release; 789 790 i++; 791 } 792 793 platform_set_drvdata(pdev, priv); 794 return 0; 795 796 out_flash_release: 797 mt6360_v4l2_flash_release(priv); 798 return ret; 799 } 800 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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