Hi Gabriel, url: https://github.com/intel-lab-lkp/linux/commits/Gabriel-Krisman-Bertazi/shmem-Allow-userspace-monitoring-of-tmpfs-for-lack-of-space/20220419-054011 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git b2d229d4ddb17db541098b83524d901257e93845 config: ia64-randconfig-m031-20220418 (https://download.01.org/0day-ci/archive/20220420/202204200819.72S8HjcF-lkp@xxxxxxxxx/config) compiler: ia64-linux-gcc (GCC) 11.2.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> smatch warnings: mm/shmem.c:3965 shmem_init() warn: passing zero to 'ERR_PTR' vim +/ERR_PTR +3965 mm/shmem.c 41ffe5d5ceef7f Hugh Dickins 2011-08-03 3928 int __init shmem_init(void) ^1da177e4c3f41 Linus Torvalds 2005-04-16 3929 { ^1da177e4c3f41 Linus Torvalds 2005-04-16 3930 int error; ^1da177e4c3f41 Linus Torvalds 2005-04-16 3931 9a8ec03ed022b7 weiping zhang 2017-11-15 3932 shmem_init_inodecache(); ^1da177e4c3f41 Linus Torvalds 2005-04-16 3933 41ffe5d5ceef7f Hugh Dickins 2011-08-03 3934 error = register_filesystem(&shmem_fs_type); ^1da177e4c3f41 Linus Torvalds 2005-04-16 3935 if (error) { 1170532bb49f94 Joe Perches 2016-03-17 3936 pr_err("Could not register tmpfs\n"); ^1da177e4c3f41 Linus Torvalds 2005-04-16 3937 goto out2; ^1da177e4c3f41 Linus Torvalds 2005-04-16 3938 } 95dc112a5770dc Greg Kroah-Hartman 2005-06-20 3939 e43933b9793ad3 Gabriel Krisman Bertazi 2022-04-18 3940 shmem_root = kobject_create_and_add("tmpfs", fs_kobj); e43933b9793ad3 Gabriel Krisman Bertazi 2022-04-18 3941 if (!shmem_root) e43933b9793ad3 Gabriel Krisman Bertazi 2022-04-18 3942 goto out1; error = -ENOMEM; e43933b9793ad3 Gabriel Krisman Bertazi 2022-04-18 3943 ca4e05195dbc25 Al Viro 2013-08-31 3944 shm_mnt = kern_mount(&shmem_fs_type); ^1da177e4c3f41 Linus Torvalds 2005-04-16 3945 if (IS_ERR(shm_mnt)) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 3946 error = PTR_ERR(shm_mnt); 1170532bb49f94 Joe Perches 2016-03-17 3947 pr_err("Could not kern_mount tmpfs\n"); e43933b9793ad3 Gabriel Krisman Bertazi 2022-04-18 3948 goto put_kobj; ^1da177e4c3f41 Linus Torvalds 2005-04-16 3949 } 5a6e75f8110c97 Kirill A. Shutemov 2016-07-26 3950 396bcc5299c281 Matthew Wilcox (Oracle 2020-04-06 3951) #ifdef CONFIG_TRANSPARENT_HUGEPAGE 435c0b87d661da Kirill A. Shutemov 2017-08-25 3952 if (has_transparent_hugepage() && shmem_huge > SHMEM_HUGE_DENY) 5a6e75f8110c97 Kirill A. Shutemov 2016-07-26 3953 SHMEM_SB(shm_mnt->mnt_sb)->huge = shmem_huge; 5a6e75f8110c97 Kirill A. Shutemov 2016-07-26 3954 else 5e6e5a12a44ca5 Hugh Dickins 2021-09-02 3955 shmem_huge = SHMEM_HUGE_NEVER; /* just in case it was patched */ 5a6e75f8110c97 Kirill A. Shutemov 2016-07-26 3956 #endif ^1da177e4c3f41 Linus Torvalds 2005-04-16 3957 return 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 3958 e43933b9793ad3 Gabriel Krisman Bertazi 2022-04-18 3959 put_kobj: e43933b9793ad3 Gabriel Krisman Bertazi 2022-04-18 3960 kobject_put(shmem_root); ^1da177e4c3f41 Linus Torvalds 2005-04-16 3961 out1: 41ffe5d5ceef7f Hugh Dickins 2011-08-03 3962 unregister_filesystem(&shmem_fs_type); ^1da177e4c3f41 Linus Torvalds 2005-04-16 3963 out2: 41ffe5d5ceef7f Hugh Dickins 2011-08-03 3964 shmem_destroy_inodecache(); ^1da177e4c3f41 Linus Torvalds 2005-04-16 @3965 shm_mnt = ERR_PTR(error); ^1da177e4c3f41 Linus Torvalds 2005-04-16 3966 return error; ^1da177e4c3f41 Linus Torvalds 2005-04-16 3967 } -- 0-DAY CI Kernel Test Service https://01.org/lkp
