From 52aac4c75623a7ef68a02f863818d7c7a5a89dca Mon Sep 17 00:00:00 2001
From: Kevin Bracey <kevin.bracey@arm.com>
Date: Fri, 1 Feb 2019 12:31:41 +0200
Subject: [PATCH] SharedPtr: use atomic load

Use atomic load to read use count.
---
 platform/SharedPtr.h | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/platform/SharedPtr.h b/platform/SharedPtr.h
index 0663b2147d..79e37901e7 100644
--- a/platform/SharedPtr.h
+++ b/platform/SharedPtr.h
@@ -177,10 +177,7 @@ public:
     uint32_t use_count() const
     {
         if (_ptr != NULL) {
-            core_util_critical_section_enter();
-            uint32_t current_counter = *_counter;
-            core_util_critical_section_exit();
-            return current_counter;
+            return core_util_atomic_load_u32(_counter);
         } else {
             return 0;
         }
@@ -230,8 +227,7 @@ private:
     void decrement_counter()
     {
         if (_ptr != NULL) {
-            uint32_t new_value = core_util_atomic_decr_u32(_counter, 1);
-            if (new_value == 0) {
+            if (core_util_atomic_decr_u32(_counter, 1) == 0) {
                 delete _counter;
                 _counter = NULL;
                 delete _ptr;