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cgroup: set 'start' with the right value in cgroup_path.

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'start' is set to buf + buflen and do the '--' immediately.
Just set it to 'buf + buflen - 1' directly.

Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
This commit is contained in:
Tao Ma 2012-11-08 21:36:38 +08:00 committed by Tejun Heo
parent 4b1c7840b7
commit 316eb661f1
1 changed files with 2 additions and 2 deletions
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4
kernel/cgroup.c
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@ -1770,9 +1770,9 @@ int cgroup_path(const struct cgroup *cgrp, char *buf, int buflen)
return 0;
}
start = buf + buflen;
start = buf + buflen - 1;
*--start = '\0';
*start = '\0';
for (;;) {
int len = dentry->d_name.len;