From e333c131886530b542f20d0cbb9894ae35a6f72f Mon Sep 17 00:00:00 2001
From: Isaac Hier <ihier@uber.com>
Date: Tue, 6 Mar 2018 17:22:50 -0500
Subject: [PATCH] Fix invalid allocation of null span context

---
 src/opentracing-c/tracer.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/opentracing-c/tracer.c b/src/opentracing-c/tracer.c
index fff4081..f3666d7 100644
--- a/src/opentracing-c/tracer.c
+++ b/src/opentracing-c/tracer.c
@@ -181,7 +181,8 @@ static int null_tracer_extract(opentracing_tracer* tracer,
     (void) format;
     (void) carrier;
     assert(span_context != NULL);
-    *span_context = malloc(sizeof(span_context));
+    *span_context =
+        (opentracing_span_context*) malloc(sizeof(opentracing_span_context));
     if (*span_context == NULL) {
         return 0;
     }