From a86e215718102e302f09ebeafedcaa5b0f00c3ed Mon Sep 17 00:00:00 2001
From: Norman Maurer <nmaurer@redhat.com>
Date: Thu, 7 Nov 2013 07:12:19 +0100
Subject: [PATCH] Fix regression which lead to leak buffers when nothing could
 be read from the Channel.

This was introduced as part of #1812, but fortunatualy was not part of any release.
---
 .../main/java/io/netty/channel/nio/AbstractNioByteChannel.java  | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/transport/src/main/java/io/netty/channel/nio/AbstractNioByteChannel.java b/transport/src/main/java/io/netty/channel/nio/AbstractNioByteChannel.java
index 05f0a06f6b..4651adc457 100644
--- a/transport/src/main/java/io/netty/channel/nio/AbstractNioByteChannel.java
+++ b/transport/src/main/java/io/netty/channel/nio/AbstractNioByteChannel.java
@@ -115,6 +115,8 @@ public abstract class AbstractNioByteChannel extends AbstractNioChannel {
                     byteBuf = allocHandle.allocate(allocator);
                     int localReadAmount = doReadBytes(byteBuf);
                     if (localReadAmount <= 0) {
+                        // not was read release the buffer
+                        byteBuf.release();
                         close = localReadAmount < 0;
                         break;
                     }