From 9a66c87a2386468fd3adc250cd9003644a7a5e6b Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 3 Sep 2015 18:28:21 +0200
Subject: cgroup: make sure cg_is_empty_recursive() returns 1 for non-existing
 cgroups

Previously, on the legacy hierarchy a non-existing cgroup was considered
identical to an empty one, but the unified hierarchy the check for a
non-existing one returned ENOENT.
---
 src/basic/cgroup-util.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src')

diff --git a/src/basic/cgroup-util.c b/src/basic/cgroup-util.c
index 3ef96b238e..bf897c9b2d 100644
--- a/src/basic/cgroup-util.c
+++ b/src/basic/cgroup-util.c
@@ -1002,6 +1002,8 @@ int cg_is_empty_recursive(const char *controller, const char *path) {
                         return r;
 
                 r = read_one_line_file(populated, &t);
+                if (r == -ENOENT)
+                        return 1;
                 if (r < 0)
                         return r;
 
-- 
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