int proc_cpuset_show(struct seq_file *m, struct pid_namespace *ns,
struct pid *pid, struct task_struct *tsk)
{
- char *buf, *p;
+ char *buf;
struct cgroup_subsys_state *css;
int retval;
if (!buf)
goto out;
- retval = -ENAMETOOLONG;
css = task_get_css(tsk, cpuset_cgrp_id);
- p = cgroup_path_ns(css->cgroup, buf, PATH_MAX,
- current->nsproxy->cgroup_ns);
+ retval = cgroup_path_ns(css->cgroup, buf, PATH_MAX,
+ current->nsproxy->cgroup_ns);
css_put(css);
- if (!p)
+ if (retval >= PATH_MAX)
+ retval = -ENAMETOOLONG;
+ if (retval < 0)
goto out_free;
- seq_puts(m, p);
+ seq_puts(m, buf);
seq_putc(m, '\n');
retval = 0;
out_free: