Initialize bwr.read_buffer in IPCThreadState::talkWithDriver.

Ben Cheng · Ben Cheng · commit 045057087905 · 2011-12-01T17:11:32.000-08:00
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
diff --git 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() {

Original file line number	Diff line number	Diff line change
`@@ -773,6 +773,7 @@ status_t IPCThreadState::talkWithDriver(bool doReceive)`
`773`	`773`	`bwr.read_buffer = (long unsigned int)mIn.data();`
`774`	`774`	`} else {`
`775`	`775`	`bwr.read_size = 0;`
	`776`	`+ bwr.read_buffer = 0;`
`776`	`777`	`}`
`777`	`778`
`778`	`779`	`IF_LOG_COMMANDS() {`