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Subject[ammarfaizi2-block:tj/cgroup/for-6.1 4/6] mm/memcontrol.c:5114:10: error: incompatible integer to pointer conversion returning 'long' from a function with result type 'struct mem_cgroup *'
tree:   https://github.com/ammarfaizi2/linux-block tj/cgroup/for-6.1
head: 075b593f54f0f3883532cb750081cae6917bc8fe
commit: fa7e439cf90ba23ea473d0b7d85efd02ae6ccf94 [4/6] cgroup: Homogenize cgroup_get_from_id() return value
config: hexagon-randconfig-r041-20220827 (https://download.01.org/0day-ci/archive/20220827/202208271911.8wz6JKoa-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project a2100daf12fb980a29fd1a9c85ccf8eaaaf79730)
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/ammarfaizi2/linux-block/commit/fa7e439cf90ba23ea473d0b7d85efd02ae6ccf94
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block tj/cgroup/for-6.1
git checkout fa7e439cf90ba23ea473d0b7d85efd02ae6ccf94
# 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=hexagon SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> mm/memcontrol.c:5114:10: error: incompatible integer to pointer conversion returning 'long' from a function with result type 'struct mem_cgroup *' [-Wint-conversion]
return PTR_ERR(cgrp);
^~~~~~~~~~~~~
1 error generated.


vim +5114 mm/memcontrol.c

5104
5105 #ifdef CONFIG_SHRINKER_DEBUG
5106 struct mem_cgroup *mem_cgroup_get_from_ino(unsigned long ino)
5107 {
5108 struct cgroup *cgrp;
5109 struct cgroup_subsys_state *css;
5110 struct mem_cgroup *memcg;
5111
5112 cgrp = cgroup_get_from_id(ino);
5113 if (IS_ERR(cgrp))
> 5114 return PTR_ERR(cgrp);
5115
5116 css = cgroup_get_e_css(cgrp, &memory_cgrp_subsys);
5117 if (css)
5118 memcg = container_of(css, struct mem_cgroup, css);
5119 else
5120 memcg = ERR_PTR(-ENOENT);
5121
5122 cgroup_put(cgrp);
5123
5124 return memcg;
5125 }
5126 #endif
5127

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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