From d640f89205e17d9f19b11c2954862f0945a40e7b Mon Sep 17 00:00:00 2001
From: Ben Cheng <bccheng@google.com>
Date: Thu, 1 Dec 2011 17:11:32 -0800
Subject: [PATCH] Initialize bwr.read_buffer in IPCThreadState::talkWithDriver.

I/valgrind( 1309): ==1310== Syscall param
ioctl(BINDER_WRITE_READ).read_buffer points to uninitialised byte(s)
I/valgrind( 1309): ==1310==    at 0x480E670: __ioctl (__ioctl.S:10)
I/valgrind( 1309): ==1310==  Address 0xbda651b4 is on thread 1's stack

Change-Id: I02893df7b5786b6b2dbd9659f5706d7171295ab2
---
 libs/binder/IPCThreadState.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libs/binder/IPCThreadState.cpp b/libs/binder/IPCThreadState.cpp
index 5ccf87f2c..5d34787d6 100644
--- a/libs/binder/IPCThreadState.cpp
+++ b/libs/binder/IPCThreadState.cpp
@@ -773,6 +773,7 @@ status_t IPCThreadState::talkWithDriver(bool doReceive)
         bwr.read_buffer = (long unsigned int)mIn.data();
     } else {
         bwr.read_size = 0;
+        bwr.read_buffer = 0;
     }
 
     IF_LOG_COMMANDS() {