From 7cfc436348d91166d2474866be4f1633279d1c92 Mon Sep 17 00:00:00 2001
From: amitkuma <amitkuma@redhat.com>
Date: Tue, 5 Sep 2017 22:21:29 +0530
Subject: [PATCH] util: Initialization of member of class ConcurrentArena

Fixes the coverity issue:

** 1396145 Uninitialized pointer field

CID 1396145 (#1 of 1): Uninitialized pointer field (UNINIT_CTOR)
2. uninit_member: Non-static class member free_begin_ is not initialized
in this constructor nor in any functions that it calls.

Signed-off-by: Amit Kumar <amitkuma@redhat.com>
---
 util/concurrent_arena.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/util/concurrent_arena.h b/util/concurrent_arena.h
index 1ab88c7ff1a..5a7e10fe8eb 100644
--- a/util/concurrent_arena.h
+++ b/util/concurrent_arena.h
@@ -88,7 +88,7 @@ class ConcurrentArena : public Allocator {
   struct Shard {
     char padding[40] ROCKSDB_FIELD_UNUSED;
     mutable SpinMutex mutex;
-    char* free_begin_;
+    char* free_begin_ = nullptr;
     std::atomic<size_t> allocated_and_unused_;
 
     Shard() : allocated_and_unused_(0) {}