Re: [PATCH -next] drivers: thermal: tsens: fix missing put_device error

From: kernel test robot
Date: Fri Sep 25 2020 - 08:24:58 EST

Hi Zheng,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on next-20200924]

url: https://github.com/0day-ci/linux/commits/Zheng-Bin/drivers-thermal-tsens-fix-missing-put_device-error/20200925-171533
base: d1d2220c7f39d0fca302c4ba6cca4ede01660a2b
config: mips-allyesconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/25ca3b91e2e59330feedab4f71ad2aef593bdbb1
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Zheng-Bin/drivers-thermal-tsens-fix-missing-put_device-error/20200925-171533
git checkout 25ca3b91e2e59330feedab4f71ad2aef593bdbb1
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

drivers/thermal/qcom/tsens.c: In function 'init_common':
>> drivers/thermal/qcom/tsens.c:759:5: error: 'err' undeclared (first use in this function)
759 | err = PTR_ERR(priv->rf[i]);
| ^~~
drivers/thermal/qcom/tsens.c:759:5: note: each undeclared identifier is reported only once for each function it appears in

vim +/err +759 drivers/thermal/qcom/tsens.c

706
707 int __init init_common(struct tsens_priv *priv)
708 {
709 void __iomem *tm_base, *srot_base;
710 struct device *dev = priv->dev;
711 u32 ver_minor;
712 struct resource *res;
713 u32 enabled;
714 int ret, i, j;
715 struct platform_device *op = of_find_device_by_node(priv->dev->of_node);
716
717 if (!op)
718 return -EINVAL;
719
720 if (op->num_resources > 1) {
721 /* DT with separate SROT and TM address space */
722 priv->tm_offset = 0;
723 res = platform_get_resource(op, IORESOURCE_MEM, 1);
724 srot_base = devm_ioremap_resource(dev, res);
725 if (IS_ERR(srot_base)) {
726 ret = PTR_ERR(srot_base);
727 goto err_put_device;
728 }
729
730 priv->srot_map = devm_regmap_init_mmio(dev, srot_base,
731 &tsens_srot_config);
732 if (IS_ERR(priv->srot_map)) {
733 ret = PTR_ERR(priv->srot_map);
734 goto err_put_device;
735 }
736 } else {
737 /* old DTs where SROT and TM were in a contiguous 2K block */
738 priv->tm_offset = 0x1000;
739 }
740
741 res = platform_get_resource(op, IORESOURCE_MEM, 0);
742 tm_base = devm_ioremap_resource(dev, res);
743 if (IS_ERR(tm_base)) {
744 ret = PTR_ERR(tm_base);
745 goto err_put_device;
746 }
747
748 priv->tm_map = devm_regmap_init_mmio(dev, tm_base, &tsens_config);
749 if (IS_ERR(priv->tm_map)) {
750 ret = PTR_ERR(priv->tm_map);
751 goto err_put_device;
752 }
753
754 if (tsens_version(priv) > VER_0_1) {
755 for (i = VER_MAJOR; i <= VER_STEP; i++) {
756 priv->rf[i] = devm_regmap_field_alloc(dev, priv->srot_map,
757 priv->fields[i]);
758 if (IS_ERR(priv->rf[i])) {
> 759 err = PTR_ERR(priv->rf[i]);
760 goto err_put_device;
761 }
762 }
763 ret = regmap_field_read(priv->rf[VER_MINOR], &ver_minor);
764 if (ret)
765 goto err_put_device;
766 }
767
768 priv->rf[TSENS_EN] = devm_regmap_field_alloc(dev, priv->srot_map,
769 priv->fields[TSENS_EN]);
770 if (IS_ERR(priv->rf[TSENS_EN])) {
771 ret = PTR_ERR(priv->rf[TSENS_EN]);
772 goto err_put_device;
773 }
774 ret = regmap_field_read(priv->rf[TSENS_EN], &enabled);
775 if (ret)
776 goto err_put_device;
777 if (!enabled) {
778 dev_err(dev, "%s: device not enabled\n", __func__);
779 ret = -ENODEV;
780 goto err_put_device;
781 }
782
783 priv->rf[SENSOR_EN] = devm_regmap_field_alloc(dev, priv->srot_map,
784 priv->fields[SENSOR_EN]);
785 if (IS_ERR(priv->rf[SENSOR_EN])) {
786 ret = PTR_ERR(priv->rf[SENSOR_EN]);
787 goto err_put_device;
788 }
789 priv->rf[INT_EN] = devm_regmap_field_alloc(dev, priv->tm_map,
790 priv->fields[INT_EN]);
791 if (IS_ERR(priv->rf[INT_EN])) {
792 ret = PTR_ERR(priv->rf[INT_EN]);
793 goto err_put_device;
794 }
795
796 /* This loop might need changes if enum regfield_ids is reordered */
797 for (j = LAST_TEMP_0; j <= UP_THRESH_15; j += 16) {
798 for (i = 0; i < priv->feat->max_sensors; i++) {
799 int idx = j + i;
800
801 priv->rf[idx] = devm_regmap_field_alloc(dev,
802 priv->tm_map,
803 priv->fields[idx]);
804 if (IS_ERR(priv->rf[idx])) {
805 ret = PTR_ERR(priv->rf[idx]);
806 goto err_put_device;
807 }
808 }
809 }
810
811 if (priv->feat->crit_int) {
812 /* Loop might need changes if enum regfield_ids is reordered */
813 for (j = CRITICAL_STATUS_0; j <= CRIT_THRESH_15; j += 16) {
814 for (i = 0; i < priv->feat->max_sensors; i++) {
815 int idx = j + i;
816
817 priv->rf[idx] =
818 devm_regmap_field_alloc(dev,
819 priv->tm_map,
820 priv->fields[idx]);
821 if (IS_ERR(priv->rf[idx])) {
822 ret = PTR_ERR(priv->rf[idx]);
823 goto err_put_device;
824 }
825 }
826 }
827 }
828
829 if (tsens_version(priv) > VER_1_X && ver_minor > 2) {
830 /* Watchdog is present only on v2.3+ */
831 priv->feat->has_watchdog = 1;
832 for (i = WDOG_BARK_STATUS; i <= CC_MON_MASK; i++) {
833 priv->rf[i] = devm_regmap_field_alloc(dev, priv->tm_map,
834 priv->fields[i]);
835 if (IS_ERR(priv->rf[i])) {
836 ret = PTR_ERR(priv->rf[i]);
837 goto err_put_device;
838 }
839 }
840 /*
841 * Watchdog is already enabled, unmask the bark.
842 * Disable cycle completion monitoring
843 */
844 regmap_field_write(priv->rf[WDOG_BARK_MASK], 0);
845 regmap_field_write(priv->rf[CC_MON_MASK], 1);
846 }
847
848 spin_lock_init(&priv->ul_lock);
849 tsens_enable_irq(priv);
850 tsens_debug_init(op);
851
852 err_put_device:
853 put_device(&op->dev);
854 return ret;
855 }
856

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

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