[miquelraynal:nvmem-layouts-and-of-cleanup 34/35] include/linux/of_device.h:59:1: error: non-void function does not return a value in all control paths

[kernel test robot <lkp@intel.com>]

tree:   https://github.com/miquelraynal/linux-0day.git nvmem-layouts-and-of-cleanup
head:   d8752324726fdde6bb205a5aa95ae8ff7d84eff7
commit: a45923134df95195ab31640803313c5225274a2a [34/35] of: module: Mutate of_device_uevent_modalias() into two helpers
config: i386-randconfig-a015-20230306 (https://download.01.org/0day-ci/archive/20230308/202303080934.iCaF59Gr-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
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/miquelraynal/linux-0day/commit/a45923134df95195ab31640803313c5225274a2a
        git remote add miquelraynal https://github.com/miquelraynal/linux-0day.git
        git fetch --no-tags miquelraynal nvmem-layouts-and-of-cleanup
        git checkout a45923134df95195ab31640803313c5225274a2a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/char/tpm/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303080934.iCaF59Gr-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/char/tpm/tpm_tis_spi_main.c:31:
>> include/linux/of_device.h:59:1: error: non-void function does not return a value in all control paths [-Werror,-Wreturn-type]
   }
   ^
   In file included from drivers/char/tpm/tpm_tis_spi_main.c:35:
   In file included from drivers/char/tpm/tpm.h:28:
   include/linux/tpm_eventlog.h:167:6: warning: variable 'mapping_size' set but not used [-Wunused-but-set-variable]
           int mapping_size;
               ^
   1 warning and 1 error generated.


vim +59 include/linux/of_device.h

    52	
    53	static inline int of_device_uevent_modalias(const struct device *dev,
    54						    struct kobj_uevent_env *env)
    55	{
    56		if (!dev || !dev->of_node || dev->of_node_reused)
    57	
    58			return of_uevent_modalias(dev->of_node, env);
  > 59	}
    60	

-- 
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https://github.com/intel/lkp-tests