[kbuild-all] [intel-linux-intel-lts:5.4/yocto 178/9302] drivers/platform/x86/socwatch/sw_driver.c:1058 sw_get_cta_aggregators_i() warn: maybe return -EFAULT instead of the bytes

tree: https://github.com/intel/linux-intel-lts.git 5.4/yocto head: eeb611e5394c56d45c5cc8f7dc484c9f19e93143 commit: a8d1e48baaa24069690e7178f3d5ebfabc3d52ba [178/9302] platform/x86: Update SoCWatch driver for 5.4 pull config: x86_64-randconfig-m001-20200818 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com&gt; New smatch warnings: drivers/platform/x86/socwatch/sw_driver.c:1058 sw_get_cta_aggregators_i() warn: maybe return -EFAULT instead of the bytes remaining? Old smatch warnings: drivers/platform/x86/socwatch/sw_driver.c:698 sw_set_driver_infos_i() warn: variable dereferenced before check 'local_msg' (see line 695) drivers/platform/x86/socwatch/sw_driver.c:998 sw_get_available_name_id_mappings_i() warn: maybe return -EFAULT instead of the bytes remaining? drivers/platform/x86/socwatch/sw_driver.c:1048 sw_get_topology_changes_i() warn: maybe return -EFAULT instead of the bytes remaining? drivers/platform/x86/socwatch/sw_driver.c:1100 sw_set_continuous_i() warn: inconsistent indenting # https://github.com/intel/linux-intel-lts/commit/a8d1e48baaa24069690e7178f... git remote add intel-linux-intel-lts https://github.com/intel/linux-intel-lts.git git fetch --no-tags intel-linux-intel-lts 5.4/yocto git checkout a8d1e48baaa24069690e7178f3d5ebfabc3d52ba vim +1058 drivers/platform/x86/socwatch/sw_driver.c 1051 static long 1052 sw_get_cta_aggregators_i(struct _sw_aggregator_msg __user *remote_msg, 1053 size_t local_len) 1054 { 1055 const struct _sw_aggregator_msg *_msg = sw_get_cta_aggregators(); 1056 long retval = copy_to_user(remote_msg, _msg, sizeof(*_msg)); 1057 1058 return retval; It should return zero on success and -EFAULT if the copy fails. 1059 } --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org