From: Kamalesh Babulal Date: Tue, 12 Sep 2023 07:04:34 +0000 (+0530) Subject: cgroup: Check for ret during cgroup1_base_files cft addition X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=fd55c0adb46a44c9a0630dc32509e4733c290103;p=linux.git cgroup: Check for ret during cgroup1_base_files cft addition There is no check for possible failure while populating cgroup1_base_files cft in css_populate_dir(), like its cgroup v2 counter parts cgroup_{base,psi}_files. In case of failure, the cgroup might not be set up right. Add ret value check to return on failure. Signed-off-by: Kamalesh Babulal Signed-off-by: Tejun Heo --- diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index 1fb7f562289d5..d40d58b963c85 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -1731,8 +1731,10 @@ static int css_populate_dir(struct cgroup_subsys_state *css) return ret; } } else { - cgroup_addrm_files(css, cgrp, - cgroup1_base_files, true); + ret = cgroup_addrm_files(css, cgrp, + cgroup1_base_files, true); + if (ret < 0) + return ret; } } else { list_for_each_entry(cfts, &css->ss->cfts, node) {