From 5bc696a85a53e1e9cc0c4d0ea205101fbde986da Mon Sep 17 00:00:00 2001
From: Shaowei Song <songshaowei.ssw@antgroup.com>
Date: Thu, 29 Aug 2024 03:01:42 +0000
Subject: [PATCH] Make the allocated segment uninitialized in the ring buffer

---
 kernel/src/util/ring_buffer.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/src/util/ring_buffer.rs b/kernel/src/util/ring_buffer.rs
index 01d78352e..e3df106c5 100644
--- a/kernel/src/util/ring_buffer.rs
+++ b/kernel/src/util/ring_buffer.rs
@@ -77,7 +77,10 @@ impl<T> RingBuffer<T> {
             "capacity must be a power of two"
         );
         let nframes = capacity.saturating_mul(Self::T_SIZE).align_up(PAGE_SIZE) / PAGE_SIZE;
-        let segment = FrameAllocOptions::new(nframes).alloc_contiguous().unwrap();
+        let segment = FrameAllocOptions::new(nframes)
+            .uninit(true)
+            .alloc_contiguous()
+            .unwrap();
         Self {
             segment,
             capacity,