From 3478a2102e8bfc63f20e22826ab39b407ff43f62 Mon Sep 17 00:00:00 2001
From: Pauli <paul.dale@oracle.com>
Date: Thu, 21 Nov 2019 13:15:21 +1000
Subject: [PATCH] Thread: Avoid a NULL dereference after failed initialisation.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10493)
---
 crypto/initthread.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/crypto/initthread.c b/crypto/initthread.c
index da30d59fec..a5f770e200 100644
--- a/crypto/initthread.c
+++ b/crypto/initthread.c
@@ -380,6 +380,8 @@ static int init_thread_deregister(void *index, int all)
     int i;
 
     gtr = get_global_tevent_register();
+    if (gtr == NULL)
+        return 0;
     if (!all)
         CRYPTO_THREAD_write_lock(gtr->lock);
     for (i = 0; i < sk_THREAD_EVENT_HANDLER_PTR_num(gtr->skhands); i++) {
-- 
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