Signed-off-by: IWASE Yusuke <[email protected]>
---
 ryu/controller/controller.py          | 2 --
 ryu/services/protocols/bgp/speaker.py | 2 +-
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/ryu/controller/controller.py b/ryu/controller/controller.py
index 4aea6bd..54fb1c9 100644
--- a/ryu/controller/controller.py
+++ b/ryu/controller/controller.py
@@ -233,8 +233,6 @@ class Datapath(ofproto_protocol.ProtocolDesc):
 
         count = 0
         while self.state != DEAD_DISPATCHER:
-            ret = ""
-
             try:
                 ret = self.socket.recv(required_len)
             except SocketTimeout:
diff --git a/ryu/services/protocols/bgp/speaker.py 
b/ryu/services/protocols/bgp/speaker.py
index fd6af44..31553b2 100644
--- a/ryu/services/protocols/bgp/speaker.py
+++ b/ryu/services/protocols/bgp/speaker.py
@@ -101,7 +101,7 @@ class BgpProtocol(Protocol, Activity):
         Activity.__init__(self, name=activity_name)
         # Intialize instance variables.
         self._peer = None
-        self._recv_buff = ''
+        self._recv_buff = b''
         self._socket = socket
         self._socket.setsockopt(IPPROTO_TCP, TCP_NODELAY, 1)
         self._sendlock = semaphore.Semaphore()
-- 
2.7.4


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