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cgroup: use strscpy() is more robust and safer

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The implementation of strscpy() is more robust and safer.

That's now the recommended way to copy NUL terminated strings.

Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
ye xingchen 2022-09-21 09:35:17 +00:00 committed by Tejun Heo
parent b74440d898
commit 8619e94d3b
1 changed files with 1 additions and 1 deletions
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2
kernel/cgroup/cgroup.c
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@ -2374,7 +2374,7 @@ int task_cgroup_path(struct task_struct *task, char *buf, size_t buflen)
ret = cgroup_path_ns_locked(cgrp, buf, buflen, &init_cgroup_ns);
} else {
/* if no hierarchy exists, everyone is in "/" */
ret = strlcpy(buf, "/", buflen);
ret = strscpy(buf, "/", buflen);
}
spin_unlock_irq(&css_set_lock);