From 1c80e425124457146ab03279e44ba5155d3e1716 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 3 Sep 2015 19:44:02 +0200
Subject: [PATCH] cgroup-util: make cg_pid_get_path() return -ENODATA when
 controller can't be found

If the controller managed by systemd cannot found in /proc/$PID/cgroup,
return ENODATA, the usual error for cases where the data being looked
for does not exist, even if the process does.
---
 src/basic/cgroup-util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/basic/cgroup-util.c b/src/basic/cgroup-util.c
index 77375f3669..812308e243 100644
--- a/src/basic/cgroup-util.c
+++ b/src/basic/cgroup-util.c
@@ -870,7 +870,7 @@ int cg_pid_get_path(const char *controller, pid_t pid, char **path) {
                 return 0;
         }
 
-        return -ENOENT;
+        return -ENODATA;
 }
 
 int cg_install_release_agent(const char *controller, const char *agent) {