From 03b94e691b282002912433266be4ba74df64c6d7 Mon Sep 17 00:00:00 2001
From: Jorge Aparicio <jorge@japaric.io>
Date: Thu, 20 Apr 2017 10:53:35 -0500
Subject: interrupt::free: don't let the token escape the critical section

---
 src/interrupt.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/interrupt.rs b/src/interrupt.rs
index a96b845..a4eac00 100644
--- a/src/interrupt.rs
+++ b/src/interrupt.rs
@@ -75,14 +75,14 @@ pub struct CriticalSection {
 /// This as also known as a "critical section".
 pub fn free<F, R>(f: F) -> R
 where
-    F: FnOnce(CriticalSection) -> R,
+    F: FnOnce(&CriticalSection) -> R,
 {
     let primask = ::register::primask::read();
 
     // disable interrupts
     disable();
 
-    let r = f(CriticalSection { _0: () });
+    let r = f(&CriticalSection { _0: () });
 
     // If the interrupts were active before our `disable` call, then re-enable
     // them. Otherwise, keep them disabled
-- 
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