linux-kernel - [PATCH 1/2] inflate_fast: sout is already a short so ptr arith was off by one.

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Date:	Sun, 28 Feb 2010 17:06:02 +0100
From:	Joakim Tjernlund <Joakim.Tjernlund@...nsmode.se>
To:	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org
Cc:	Joakim Tjernlund <Joakim.Tjernlund@...nsmode.se>
Subject: [PATCH 1/2] inflate_fast: sout is already a short so ptr arith was off by one.

This won't change anything for current code, but post increment
will break without this fix, should anyone want to try that.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@...nsmode.se>
---
 lib/zlib_inflate/inffast.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/lib/zlib_inflate/inffast.c b/lib/zlib_inflate/inffast.c
index fa62fc7..2c13ecc 100644
--- a/lib/zlib_inflate/inffast.c
+++ b/lib/zlib_inflate/inffast.c
@@ -286,7 +286,7 @@ void inflate_fast(z_streamp strm, unsigned start)
 		    } else { /* dist == 1 or dist == 2 */
 			unsigned short pat16;

-			pat16 = *(sout-2+2*OFF);
+			pat16 = *(sout-1+OFF);
 			if (dist == 1) {
 				union uu mm;
 				/* copy one char pattern to both bytes */
-- 
1.6.4.4

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