From 2f79428e34ef3696cc6a6a2409b9ee7d49d0b96b Mon Sep 17 00:00:00 2001
From: Mattt Thompson <m@mattt.me>
Date: Tue, 1 May 2012 08:04:29 -0700
Subject: [PATCH] [Issue #323] Close existing outputStream in setOutputStream:

---
 AFNetworking/AFURLConnectionOperation.m | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/AFNetworking/AFURLConnectionOperation.m b/AFNetworking/AFURLConnectionOperation.m
index 5d55ab6..ed0d42d 100644
--- a/AFNetworking/AFURLConnectionOperation.m
+++ b/AFNetworking/AFURLConnectionOperation.m
@@ -248,7 +248,11 @@ static inline BOOL AFStateTransitionIsValid(AFOperationState fromState, AFOperat
 - (void)setOutputStream:(NSOutputStream *)outputStream {
     [self willChangeValueForKey:@"outputStream"];
     [outputStream retain];
-    [_outputStream release];
+    
+    if (_outputStream) {
+        [_outputStream close];
+        [_outputStream release];
+    }
     _outputStream = outputStream;
     [self didChangeValueForKey:@"outputStream"];