From 8f487bdc7297042335d7b0bf5dc34213766ca3ab Mon Sep 17 00:00:00 2001
From: Taiki Endo <te316e89@gmail.com>
Date: Wed, 28 Apr 2021 14:37:21 +0900
Subject: [PATCH] epoch: Correct handling of null ptr returned from
 alloc::alloc

---
 crossbeam-epoch/src/atomic.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/crossbeam-epoch/src/atomic.rs b/crossbeam-epoch/src/atomic.rs
index e4ca23f14..75a4714ef 100644
--- a/crossbeam-epoch/src/atomic.rs
+++ b/crossbeam-epoch/src/atomic.rs
@@ -252,6 +252,9 @@ impl<T> Pointable for [MaybeUninit<T>] {
         let align = mem::align_of::<Array<T>>();
         let layout = alloc::Layout::from_size_align(size, align).unwrap();
         let ptr = alloc::alloc(layout) as *mut Array<T>;
+        if ptr.is_null() {
+            alloc::handle_alloc_error(layout);
+        }
         (*ptr).size = size;
         ptr as usize
     }