Hi Tomohiro, [auto build test WARNING on input/next] [also build test WARNING on v4.11-rc8 next-20170428] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Tomohiro-Yoshidomi/Input-psxpad-spi-Add-PlayStation-1-2-joypads-via-SPI-interface-Driver/20170430-114033 base: https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next config: ia64-allmodconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 6.2.0 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=ia64 Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): drivers/input/joystick/psxpad-spi.c: In function 'psxpad_spi_probe': >> drivers/input/joystick/psxpad-spi.c:319:3: warning: 'err' may be used uninitialized in this function [-Wmaybe-uninitialized] dev_err(&spi->dev, ^~~~~~~~~~~~~~~~~~ "%s: failed to pdev alloc mode: %d\n", ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ __func__, err); ~~~~~~~~~~~~~~ vim +/err +319 drivers/input/joystick/psxpad-spi.c 303 return 0; 304 } 305 #endif /* CONFIG_JOYSTICK_PSXPAD_SPI_FF */ 306 307 static int psxpad_spi_probe(struct spi_device *spi) 308 { 309 struct psxpad *pad; 310 struct input_polled_dev *pdev; 311 struct input_dev *idev; 312 int err; 313 314 pad = devm_kzalloc(&spi->dev, sizeof(struct psxpad), GFP_KERNEL); 315 if (!pad) 316 return -ENOMEM; 317 pdev = input_allocate_polled_device(); 318 if (!pdev) { > 319 dev_err(&spi->dev, 320 "%s: failed to pdev alloc mode: %d\n", 321 __func__, err); 322 return -ENOMEM; 323 } 324 325 /* input poll device settings */ 326 pad->pdev = pdev; 327 pad->spi = spi; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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