[U-Boot] [PATCH] disk: fix unaligned access in efi partitions

Marc Dietrich
2013-03-29T11:28:58Z

start_sect is not aligned to a 4 byte boundary thus causing exceptions
on ARM platforms. Access this field via the get_unaligned macro.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
---
disk/part_efi.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/disk/part_efi.c b/disk/part_efi.c
index b3fd0e9..6678a4c 100644
--- a/disk/part_efi.c
+++ b/disk/part_efi.c
@@ -30,6 +30,7 @@
*
* This limits the maximum size of addressable storage to < 2 Terra Bytes
*/
+#include <asm/unaligned.h>
#include <common.h>
#include <command.h>
#include <ide.h>
@@ -505,7 +506,7 @@ err:
static int pmbr_part_valid(struct partition *part)
{
if (part->sys_ind == EFI_PMBR_OSTYPE_EFI_GPT &&
- le32_to_cpu(part->start_sect) == 1UL) {
+ le32_to_cpu(get_unaligned(&part->start_sect)) == 1UL) {
return 1;
}

--
1.7.9.5