From ef3497646f8e80cb3bfb568c82b35dbfb8bc6517 Mon Sep 17 00:00:00 2001
From: Fernand Sieber <sieberf@amazon.com>
Date: Wed, 20 Mar 2024 13:55:56 +0200
Subject: [PATCH] controllers parsing is resilient to trailing newline

In older kernel versions (tested with 5.10.208), the cgroup.controllers
files ends with a newline. This newline is not trimmed and as such the
application later can incorrectly consider that the last controller is not
supported
---
 src/cgroup.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cgroup.rs b/src/cgroup.rs
index 1a67795..1e2151f 100644
--- a/src/cgroup.rs
+++ b/src/cgroup.rs
@@ -521,7 +521,7 @@ fn supported_controllers() -> Vec<String> {
     let ret = fs::read_to_string(p.as_str());
     ret.unwrap_or_default()
         .split(' ')
-        .map(|x| x.to_string())
+        .map(|x| x.trim().to_string())
         .collect::<Vec<String>>()
 }