From c6ed9ef43f6606f654c2392413ca8ed380a35056 Mon Sep 17 00:00:00 2001
From: Jorge Aparicio <jorge@japaric.io>
Date: Tue, 21 Nov 2017 15:56:16 +0100
Subject: turn peripherals into scoped singletons

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

(limited to 'src/exception.rs')

diff --git a/src/exception.rs b/src/exception.rs
index 3052f66..7203dfa 100644
--- a/src/exception.rs
+++ b/src/exception.rs
@@ -31,8 +31,8 @@ impl Exception {
     ///
     /// Returns `None` if no exception is currently active
     pub fn active() -> Option<Exception> {
-        // NOTE(safe) atomic read
-        let icsr = unsafe { (*::peripheral::SCB.get()).icsr.read() };
+        // NOTE(safe) atomic read with no side effects
+        let icsr = unsafe { (*::peripheral::SCB::ptr()).icsr.read() };
 
         Some(match icsr as u8 {
             0 => return None,
-- 
cgit v1.2.3