tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git class_cleanup head: c6dd61fdeee23ae8743e3ac8234ab05f94bcc601 commit: c93bd175414ac43d7ea6cb2a17f49eb91af03f00 [34/80] powerpc/fsl: move to use bus_get_dev_root() config: powerpc-randconfig-r003-20230326 (https://download.01.org/0day-ci/archive/20230328/202303280045.4oaaezcn-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7) 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 # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git/commit/?id=c93bd175414ac43d7ea6cb2a17f49eb91af03f00 git remote add driver-core https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git git fetch --no-tags driver-core class_cleanup git checkout c93bd175414ac43d7ea6cb2a17f49eb91af03f00 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/sysdev/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303280045.4oaaezcn-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> arch/powerpc/sysdev/fsl_mpic_timer_wakeup.c:129:6: error: variable 'ret' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized] if (dev_root) { ^~~~~~~~ arch/powerpc/sysdev/fsl_mpic_timer_wakeup.c:136:9: note: uninitialized use occurs here return ret; ^~~ arch/powerpc/sysdev/fsl_mpic_timer_wakeup.c:129:2: note: remove the 'if' if its condition is always true if (dev_root) { ^~~~~~~~~~~~~~ arch/powerpc/sysdev/fsl_mpic_timer_wakeup.c:120:9: note: initialize the variable 'ret' to silence this warning int ret; ^ = 0 1 error generated. vim +129 arch/powerpc/sysdev/fsl_mpic_timer_wakeup.c 113 114 static struct device_attribute mpic_attributes = __ATTR(timer_wakeup, 0644, 115 fsl_timer_wakeup_show, fsl_timer_wakeup_store); 116 117 static int __init fsl_wakeup_sys_init(void) 118 { 119 struct device *dev_root; 120 int ret; 121 122 fsl_wakeup = kzalloc(sizeof(struct fsl_mpic_timer_wakeup), GFP_KERNEL); 123 if (!fsl_wakeup) 124 return -ENOMEM; 125 126 INIT_WORK(&fsl_wakeup->free_work, fsl_free_resource); 127 128 dev_root = bus_get_dev_root(&mpic_subsys); > 129 if (dev_root) { 130 ret = device_create_file(dev_root, &mpic_attributes); 131 put_device(dev_root); 132 if (ret) 133 kfree(fsl_wakeup); 134 } 135 136 return ret; 137 } 138 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
