From 2bc6d1bb77a4498f93dcd56ac9b979d47efca057 Mon Sep 17 00:00:00 2001
From: Alexandre Normand <alexandre.normand@gmail.com>
Date: Tue, 23 Aug 2022 06:09:15 -0700
Subject: [PATCH] Use span read lock when reading span meta from span context
 (#1437)

* Use span read lock when reading span meta from span context

* Fix typo un mutex unlock call

Co-authored-by: Andrew Glaude <andrew.glaude@datadoghq.com>
---
 ddtrace/tracer/spancontext.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ddtrace/tracer/spancontext.go b/ddtrace/tracer/spancontext.go
index 8a92dfe485..c7ee376c1f 100644
--- a/ddtrace/tracer/spancontext.go
+++ b/ddtrace/tracer/spancontext.go
@@ -126,8 +126,8 @@ func (c *spanContext) baggageItem(key string) string {
 }
 
 func (c *spanContext) meta(key string) (val string, ok bool) {
-	c.mu.RLock()
-	defer c.mu.RUnlock()
+	c.span.RLock()
+	defer c.span.RUnlock()
 	val, ok = c.span.Meta[key]
 	return val, ok
 }