From 484b930fd1bb3d32871cd91f6a2bf5c459081e66 Mon Sep 17 00:00:00 2001
From: "chao.an" <anchao@xiaomi.com>
Date: Sat, 19 Mar 2022 00:57:37 +0800
Subject: [PATCH] netdb/getaddrinfo: fix NULL pointer reference

Signed-off-by: chao.an <anchao@xiaomi.com>
---
 libs/libc/netdb/lib_getaddrinfo.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/libs/libc/netdb/lib_getaddrinfo.c b/libs/libc/netdb/lib_getaddrinfo.c
index bb14ef3967..cc6b9f0571 100644
--- a/libs/libc/netdb/lib_getaddrinfo.c
+++ b/libs/libc/netdb/lib_getaddrinfo.c
@@ -290,11 +290,10 @@ int getaddrinfo(FAR const char *hostname, FAR const char *servname,
       if (ai != NULL)
         {
           *res = (FAR struct addrinfo *)ai;
-        }
-
-      if (flags & AI_CANONNAME)
-        {
-          ai->ai.ai_canonname = (FAR char *)hostname;
+          if (flags & AI_CANONNAME)
+            {
+              ai->ai.ai_canonname = (FAR char *)hostname;
+            }
         }
 
       return (*res != NULL) ? OK : EAI_MEMORY;