From 56ae29f92d11a56ad706346bfbafcaa7b2db1055 Mon Sep 17 00:00:00 2001
From: Evgeniy Stepanov <eugeni.stepanov@gmail.com>
Date: Mon, 13 Feb 2012 11:53:24 +0000
Subject: [PATCH] [asan] Fix a crash in GetCurrent() of an undead thread.

llvm-svn: 150371
---
 compiler-rt/lib/asan/asan_thread_registry.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler-rt/lib/asan/asan_thread_registry.cc b/compiler-rt/lib/asan/asan_thread_registry.cc
index cd48769aa5b7..56208e62a2c4 100644
--- a/compiler-rt/lib/asan/asan_thread_registry.cc
+++ b/compiler-rt/lib/asan/asan_thread_registry.cc
@@ -73,7 +73,7 @@ AsanThread *AsanThreadRegistry::GetCurrent() {
     // limits, so only do this magic on Android, and only if the found thread is
     // the main thread.
     AsanThread* thread = FindThreadByStackAddress((uintptr_t)&summary);
-    if (thread->tid() == 0) {
+    if (thread && thread->tid() == 0) {
       SetCurrent(thread);
       return thread;
     }