From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Date: Tue, 2 Mar 2010 16:41:01 +0000 (-0500)
Subject: compiler.h: add () in ACCESS_ONCE()
X-Git-Tag: v0.4.2~3
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=56b14eae63673af90dd92e9495ee1d6905591f1f;p=userspace-rcu.git

compiler.h: add () in ACCESS_ONCE()

Protect x in ACCESS_ONCE macro.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/urcu/compiler.h b/urcu/compiler.h
index 5b7bb30..ce19c74 100644
--- a/urcu/compiler.h
+++ b/urcu/compiler.h
@@ -37,7 +37,7 @@
  * use is to mediate communication between process-level code and irq/NMI
  * handlers, all running on the same CPU.
  */
-#define ACCESS_ONCE(x)	(*(volatile typeof(x) *)&x)
+#define ACCESS_ONCE(x)	(*(volatile typeof(x) *)&(x))
 
 #ifndef max
 #define max(a,b) ((a)>(b)?(a):(b))