From cd78c2693a421a53af98901ae798eebb9051617b Mon Sep 17 00:00:00 2001
From: Wang Han <416810799@qq.com>
Date: Thu, 16 Oct 2025 11:46:35 +0800
Subject: [PATCH] Don't write newline character to cgroup node (#2804)

This prevents su hang on oplus devices, maybe related to bad kernel
hooks.
---
 userspace/ksud/src/utils.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/userspace/ksud/src/utils.rs b/userspace/ksud/src/utils.rs
index bc77c32f..5bd54e4b 100644
--- a/userspace/ksud/src/utils.rs
+++ b/userspace/ksud/src/utils.rs
@@ -142,7 +142,7 @@ fn switch_cgroup(grp: &str, pid: u32) {
 
     let fp = OpenOptions::new().append(true).open(path);
     if let std::result::Result::Ok(mut fp) = fp {
-        let _ = writeln!(fp, "{pid}");
+        let _ = write!(fp, "{pid}");
     }
 }