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authorNick Spence <nick.spence@freescale.com>2008-05-10 14:02:04 -0700
committerWolfgang Denk <wd@denx.de>2008-05-12 00:44:24 +0200
commit02b9b22446e3d7ad6a6382be17a1ce79a7de589b (patch)
tree1c5e0a843856256fd6f66b13d637ef5e47d5ea57 /common/image.c
parentc9dca3c3f37d2647aec4509b24b16d15882ae3e4 (diff)
downloadu-boot-linaro-natty-02b9b22446e3d7ad6a6382be17a1ce79a7de589b.tar.gz
Fix offset calculation for multi-type legacy images.
Calculation of tail was incorrect when size % 4 == 0. New code removes the conditional and does the same thing but with arithmetic Signed-off-by: Nick Spence <nick.spence@freescale.com>
Diffstat (limited to 'common/image.c')
-rw-r--r--common/image.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/common/image.c b/common/image.c
index f7faf504d..9e9e02342 100644
--- a/common/image.c
+++ b/common/image.c
@@ -23,7 +23,6 @@
* MA 02111-1307 USA
*/
-
#ifndef USE_HOSTCC
#include <common.h>
#include <watchdog.h>
@@ -242,7 +241,7 @@ void image_multi_getimg (image_header_t *hdr, ulong idx,
{
int i;
uint32_t *size;
- ulong offset, tail, count, img_data;
+ ulong offset, count, img_data;
/* get number of component */
count = image_multi_count (hdr);
@@ -258,19 +257,15 @@ void image_multi_getimg (image_header_t *hdr, ulong idx,
if (idx < count) {
*len = uimage_to_cpu (size[idx]);
offset = 0;
- tail = 0;
/* go over all indices preceding requested component idx */
for (i = 0; i < idx; i++) {
- /* add up i-th component size */
- offset += uimage_to_cpu (size[i]);
-
- /* add up alignment for i-th component */
- tail += (4 - uimage_to_cpu (size[i]) % 4);
+ /* add up i-th component size, rounding up to 4 bytes */
+ offset += (uimage_to_cpu (size[i]) + 3) & ~3 ;
}
/* calculate idx-th component data address */
- *data = img_data + offset + tail;
+ *data = img_data + offset;
} else {
*len = 0;
*data = 0;