From: Yao Zongyou <yaozongyou@vip.qq.com>
Date: Sat, 23 Dec 2017 04:48:47 +0000 (+0800)
Subject: common/dns_resolve: fix memory leak
X-Git-Tag: v13.0.2~671^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F19649%2Fhead;p=ceph.git

common/dns_resolve: fix memory leak

Signed-off-by: Yao Zongyou <yaozongyou@vip.qq.com>
---

diff --git a/src/common/dns_resolve.cc b/src/common/dns_resolve.cc
index f3594b0041f7..351e390f9e3e 100644
--- a/src/common/dns_resolve.cc
+++ b/src/common/dns_resolve.cc
@@ -196,6 +196,9 @@ int DNSResolver::resolve_ip_addr(CephContext *cct, const string& hostname,
   if (r < 0) {
     return r;
   }
+  auto put_state = make_scope_guard([res, this] {
+      this->put_state(res);
+    });
   return this->resolve_ip_addr(cct, &res, hostname, addr);
 #else
   return this->resolve_ip_addr(cct, NULL, hostname, addr);