From 25c369d4cfe7b4be546b4504a71105aeeda989f3 Mon Sep 17 00:00:00 2001
From: Jianghua Yang <jianghua.yjh@alibaba-inc.com>
Date: Tue, 22 Sep 2015 14:51:38 +0800
Subject: [PATCH] unix: fix memory leak in uv_interface_addresses
MIME-Version: 1.0
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PR-URL: https://github.com/libuv/libuv/pull/537
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
---
 src/unix/darwin.c     | 4 +++-
 src/unix/freebsd.c    | 4 +++-
 src/unix/linux-core.c | 4 +++-
 src/unix/netbsd.c     | 4 +++-
 src/unix/openbsd.c    | 4 +++-
 src/unix/sunos.c      | 4 +++-
 6 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/src/unix/darwin.c b/src/unix/darwin.c
index dab6ca99..cf95da21 100644
--- a/src/unix/darwin.c
+++ b/src/unix/darwin.c
@@ -258,8 +258,10 @@ int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
   }
 
   *addresses = uv__malloc(*count * sizeof(**addresses));
-  if (!(*addresses))
+  if (!(*addresses)) {
+    freeifaddrs(addrs);
     return -ENOMEM;
+  }
 
   address = *addresses;
 
diff --git a/src/unix/freebsd.c b/src/unix/freebsd.c
index c69608b1..ddfd0f28 100644
--- a/src/unix/freebsd.c
+++ b/src/unix/freebsd.c
@@ -373,8 +373,10 @@ int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
   }
 
   *addresses = uv__malloc(*count * sizeof(**addresses));
-  if (!(*addresses))
+  if (!(*addresses)) {
+    freeifaddrs(addrs);
     return -ENOMEM;
+  }
 
   address = *addresses;
 
diff --git a/src/unix/linux-core.c b/src/unix/linux-core.c
index e6e68283..3ff6fb15 100644
--- a/src/unix/linux-core.c
+++ b/src/unix/linux-core.c
@@ -814,8 +814,10 @@ int uv_interface_addresses(uv_interface_address_t** addresses,
     return 0;
 
   *addresses = uv__malloc(*count * sizeof(**addresses));
-  if (!(*addresses))
+  if (!(*addresses)) {
+    freeifaddrs(addrs);
     return -ENOMEM;
+  }
 
   address = *addresses;
 
diff --git a/src/unix/netbsd.c b/src/unix/netbsd.c
index 29f2a4de..ca48550f 100644
--- a/src/unix/netbsd.c
+++ b/src/unix/netbsd.c
@@ -298,8 +298,10 @@ int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
 
   *addresses = uv__malloc(*count * sizeof(**addresses));
 
-  if (!(*addresses))
+  if (!(*addresses)) {
+    freeifaddrs(addrs);
     return -ENOMEM;
+  }
 
   address = *addresses;
 
diff --git a/src/unix/openbsd.c b/src/unix/openbsd.c
index c8d54599..e6ca7a8b 100644
--- a/src/unix/openbsd.c
+++ b/src/unix/openbsd.c
@@ -313,8 +313,10 @@ int uv_interface_addresses(uv_interface_address_t** addresses,
 
   *addresses = uv__malloc(*count * sizeof(**addresses));
 
-  if (!(*addresses))
+  if (!(*addresses)) {
+    freeifaddrs(addrs);
     return -ENOMEM;
+  }
 
   address = *addresses;
 
diff --git a/src/unix/sunos.c b/src/unix/sunos.c
index 05b7a114..0c46817b 100644
--- a/src/unix/sunos.c
+++ b/src/unix/sunos.c
@@ -693,8 +693,10 @@ int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
   }
 
   *addresses = uv__malloc(*count * sizeof(**addresses));
-  if (!(*addresses))
+  if (!(*addresses)) {
+    freeifaddrs(addrs);
     return -ENOMEM;
+  }
 
   address = *addresses;