Hi Jagath, https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Jagath-Jog-J/rtc-add-Maxim-max31329-real-time-clock/20220904-124909 base: https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next config: m68k-randconfig-m031-20220909 compiler: m68k-linux-gcc (GCC) 12.1.0 If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot Reported-by: Dan Carpenter smatch warnings: drivers/rtc/rtc-max31329.c:276 max31329_irq_handler() error: uninitialized symbol 'events'. vim +/events +276 drivers/rtc/rtc-max31329.c f26f983311b011 Jagath Jog J 2022-09-04 250 static irqreturn_t max31329_irq_handler(int irq, void *dev_id) f26f983311b011 Jagath Jog J 2022-09-04 251 { f26f983311b011 Jagath Jog J 2022-09-04 252 struct device *dev = dev_id; f26f983311b011 Jagath Jog J 2022-09-04 253 struct max31329_data *max31329 = dev_get_drvdata(dev); f26f983311b011 Jagath Jog J 2022-09-04 254 unsigned int flags, controls; f26f983311b011 Jagath Jog J 2022-09-04 255 unsigned long events; Needs to be initialized to zero. f26f983311b011 Jagath Jog J 2022-09-04 256 int ret; f26f983311b011 Jagath Jog J 2022-09-04 257 f26f983311b011 Jagath Jog J 2022-09-04 258 ret = regmap_read(max31329->regmap, MAX31329_INT_EN_REG, &controls); f26f983311b011 Jagath Jog J 2022-09-04 259 if (ret) { f26f983311b011 Jagath Jog J 2022-09-04 260 dev_warn(dev, "Read IRQ control register error %d\n", ret); f26f983311b011 Jagath Jog J 2022-09-04 261 return IRQ_NONE; f26f983311b011 Jagath Jog J 2022-09-04 262 } f26f983311b011 Jagath Jog J 2022-09-04 263 f26f983311b011 Jagath Jog J 2022-09-04 264 ret = regmap_read(max31329->regmap, MAX31329_STATUS_REG, &flags); f26f983311b011 Jagath Jog J 2022-09-04 265 if (ret) { f26f983311b011 Jagath Jog J 2022-09-04 266 dev_warn(dev, "Read IRQ flags register error %d\n", ret); f26f983311b011 Jagath Jog J 2022-09-04 267 return IRQ_NONE; f26f983311b011 Jagath Jog J 2022-09-04 268 } f26f983311b011 Jagath Jog J 2022-09-04 269 f26f983311b011 Jagath Jog J 2022-09-04 270 if (flags & MAX31329_STATUS_A1F) { f26f983311b011 Jagath Jog J 2022-09-04 271 flags &= ~MAX31329_STATUS_A1F; f26f983311b011 Jagath Jog J 2022-09-04 272 controls &= ~MAX31329_INT_EN_A1IE; f26f983311b011 Jagath Jog J 2022-09-04 273 events = RTC_AF | RTC_IRQF; f26f983311b011 Jagath Jog J 2022-09-04 274 } f26f983311b011 Jagath Jog J 2022-09-04 275 f26f983311b011 Jagath Jog J 2022-09-04 @276 if (events) { f26f983311b011 Jagath Jog J 2022-09-04 277 rtc_update_irq(max31329->rtc, 1, events); f26f983311b011 Jagath Jog J 2022-09-04 278 regmap_write(max31329->regmap, MAX31329_STATUS_REG, flags); f26f983311b011 Jagath Jog J 2022-09-04 279 regmap_write(max31329->regmap, MAX31329_INT_EN_REG, controls); f26f983311b011 Jagath Jog J 2022-09-04 280 return IRQ_HANDLED; f26f983311b011 Jagath Jog J 2022-09-04 281 } f26f983311b011 Jagath Jog J 2022-09-04 282 f26f983311b011 Jagath Jog J 2022-09-04 283 return IRQ_NONE; f26f983311b011 Jagath Jog J 2022-09-04 284 }