From: Jon Ringle <jon@ringle.org>
Date: Wed, 13 Jan 2010 14:36:10 +0000 (-0500)
Subject: mtd: ixp4xx: fix reading from half-word boundary
X-Git-Url: http://git.mmlx.us/?a=commitdiff_plain;h=53f2b1c86a1fa1414be93571062ac4c263fa9fbc;p=linux-edison.git

mtd: ixp4xx: fix reading from half-word boundary

Fix handling of reads that don't start on a half-word boundary.

Signed-off-by: Jon Ringle <jon@ringle.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
---

diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c
index 7b051529741..7513d90fee6 100644
--- a/drivers/mtd/maps/ixp4xx.c
+++ b/drivers/mtd/maps/ixp4xx.c
@@ -107,8 +107,8 @@ static void ixp4xx_copy_from(struct map_info *map, void *to,
 		return;
 
 	if (from & 1) {
-		*dest++ = BYTE1(flash_read16(src));
-                src++;
+		*dest++ = BYTE1(flash_read16(src-1));
+		src++;
 		--len;
 	}