From 3ce1916c83041113b9cad9ead5c97a527cf8aa1d Mon Sep 17 00:00:00 2001
From: Lasse Collin <lasse.collin@tukaani.org>
Date: Sun, 16 Aug 2009 22:15:13 +0300
Subject: [PATCH] Fix data corruption in LZ/LZMA2 encoder.

Thanks to Jonathan Stott for the bug report.
---
 src/liblzma/lz/lz_encoder.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/liblzma/lz/lz_encoder.h b/src/liblzma/lz/lz_encoder.h
index 4904c229..35e9ebbf 100644
--- a/src/liblzma/lz/lz_encoder.h
+++ b/src/liblzma/lz/lz_encoder.h
@@ -234,7 +234,7 @@ mf_avail(const lzma_mf *mf)
 static inline uint32_t
 mf_unencoded(const lzma_mf *mf)
 {
-	return mf->write_pos - mf->read_pos - mf->read_ahead;
+	return mf->write_pos - mf->read_pos + mf->read_ahead;
 }