From d1e820d8ee01583e1db13ff27ec32dc94e18641d Mon Sep 17 00:00:00 2001
From: NanXiao <xn212516@163.com>
Date: Mon, 14 Jul 2014 14:33:16 +0800
Subject: [PATCH] Add error check in redisContextInit

Check whether the obuf or reader is empty: if one of the items is empty,
free the redisContext.
---
 hiredis.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/hiredis.c b/hiredis.c
index 10ac8d0..a36c6f3 100644
--- a/hiredis.c
+++ b/hiredis.c
@@ -1059,6 +1059,12 @@ static redisContext *redisContextInit(void) {
     c->errstr[0] = '\0';
     c->obuf = sdsempty();
     c->reader = redisReaderCreate();
+
+    if (c->obuf == NULL || c->reader == NULL) {
+        redisFree(c);
+        return NULL;
+    }
+
     return c;
 }