Hi Andy, I love your patch! Yet something to improve: [auto build test ERROR on tty/tty-testing] [also build test ERROR on usb/usb-testing linux/master linus/master v5.17-rc4 next-20220214] [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/Andy-Shevchenko/driver-core-add-... base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing config: hexagon-buildonly-randconfig-r001-20220214 (https://download.01.org/0day-ci/archive/20220215/202202150314.3Ybl4jns-lk...) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project ea071884b0cc7210b3cc5fe858f0e892a779a23b) 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/810910d324cc80b092207d043651de696... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Andy-Shevchenko/driver-core-add-a-wrapper-to-device-probe-log-helper-to-return-pointer/20220214-223425 git checkout 810910d324cc80b092207d043651de696d293cbd # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/tty/serial/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): return dev_err_probe_ptr(&pdev->dev, PTR_ERR(rstc), "failed to get reset ctrl\n"); ~~~~~~~~~~~~~~~~~ ^ include/linux/device.h:988:7: note: 'dev_err_probe_ptr' declared here void *dev_err_probe_ptr(const struct device *dev, int err, const char *fmt, va_list args) ^ 1 error generated. vim +3205 drivers/tty/serial/sh-sci.c 3187 3188 static struct plat_sci_port *sci_parse_dt(struct platform_device *pdev, 3189 unsigned int *dev_id) 3190 { 3191 struct device_node *np = pdev->dev.of_node; 3192 struct reset_control *rstc; 3193 struct plat_sci_port *p; 3194 struct sci_port *sp; 3195 const void *data; 3196 int id, ret; 3197 3198 if (!IS_ENABLED(CONFIG_OF) || !np) 3199 return ERR_PTR(-EINVAL); 3200 3201 data = of_device_get_match_data(&pdev->dev); 3202 3203 rstc = devm_reset_control_get_optional_exclusive(&pdev->dev, NULL); 3204 if (IS_ERR(rstc)) 3206 3207 ret = reset_control_deassert(rstc); 3208 if (ret) { 3209 dev_err(&pdev->dev, "failed to deassert reset %d\n", ret); 3210 return ERR_PTR(ret); 3211 } 3212 3213 ret = devm_add_action_or_reset(&pdev->dev, sci_reset_control_assert, rstc); 3214 if (ret) { 3215 dev_err(&pdev->dev, "failed to register assert devm action, %d\n", 3216 ret); 3217 return ERR_PTR(ret); 3218 } 3219 3220 p = devm_kzalloc(&pdev->dev, sizeof(struct plat_sci_port), GFP_KERNEL); 3221 if (!p) 3222 return ERR_PTR(-ENOMEM); 3223 3224 /* Get the line number from the aliases node. */ 3225 id = of_alias_get_id(np, "serial"); 3226 if (id < 0 && ~sci_ports_in_use) 3227 id = ffz(sci_ports_in_use); 3228 if (id < 0) { 3229 dev_err(&pdev->dev, "failed to get alias id (%d)\n", id); 3230 return ERR_PTR(-EINVAL); 3231 } 3232 if (id >= ARRAY_SIZE(sci_ports)) { 3233 dev_err(&pdev->dev, "serial%d out of range\n", id); 3234 return ERR_PTR(-EINVAL); 3235 } 3236 3237 sp = &sci_ports[id]; 3238 *dev_id = id; 3239 3240 p->type = SCI_OF_TYPE(data); 3241 p->regtype = SCI_OF_REGTYPE(data); 3242 3243 sp->has_rtscts = of_property_read_bool(np, "uart-has-rtscts"); 3244 3245 return p; 3246 } 3247 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org