Hi James, kernel test robot noticed the following build warnings: [auto build test WARNING on dtor-input/next] [also build test WARNING on dtor-input/for-linus lee-mfd/for-mfd-next robh/for-next linus/master lee-mfd/for-mfd-fixes v6.6-rc6 next-20231020] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/James-Ogletree/dt-bindings-input-cirrus-cs40l50-Add-initial-DT-binding/20231019-015950 base: https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next patch link: https://lore.kernel.org/r/20231018175726.3879955-5-james.ogletree%40opensource.cirrus.com patch subject: [PATCH v4 4/4] Input: cs40l50 - Add support for the CS40L50 haptic driver config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20231020/202310202344.LreohGFP-lkp@xxxxxxxxx/config) compiler: sparc64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231020/202310202344.LreohGFP-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202310202344.LreohGFP-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/input/misc/cs40l50-vibra.c: In function 'cs40l50_vibra_remove': >> drivers/input/misc/cs40l50-vibra.c:329:13: warning: the comparison will always evaluate as 'true' for the address of 'dsp' will never be NULL [-Waddress] 329 | if (&cs40l50->dsp) | ^ In file included from drivers/input/misc/cs40l50-vibra.c:11: include/linux/mfd/cs40l50.h:180:23: note: 'dsp' declared here 180 | struct cs_dsp dsp; | ^~~ vim +329 drivers/input/misc/cs40l50-vibra.c 319 320 static int cs40l50_vibra_remove(struct platform_device *pdev) 321 { 322 struct cs40l50_private *cs40l50 = dev_get_drvdata(pdev->dev.parent); 323 324 input_unregister_device(cs40l50->input); 325 cs_hap_remove(&cs40l50->haptics); 326 327 if (cs40l50->dsp.booted) 328 cs_dsp_power_down(&cs40l50->dsp); > 329 if (&cs40l50->dsp) 330 cs_dsp_remove(&cs40l50->dsp); 331 332 return 0; 333 } 334 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki