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Fixed unaligned access 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Fabian van der Werf 2011-10-09 11:29:52 +02:00 committed by Sascha Hauer
parent 597da1b76e
commit 97f3cc022c
1 changed files with 10 additions and 5 deletions
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15
drivers/ata/disk_drive.c
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@ -38,6 +38,7 @@
#include <malloc.h>
#include <common.h>
#include <block.h>
#include <asm/unaligned.h>
/**
* Description of one partition table entry (D*S type)
@ -97,25 +98,29 @@ static int disk_register_partitions(struct device_d *dev, struct partition_entry
int part_order[4] = {0, 1, 2, 3};
int i, rc;
char drive_name[16], partition_name[19];
u32 partition_start, partition_size;
/* TODO order the partitions */
for (i = 0; i < 4; i++) {
partition_start = get_unaligned(&table[part_order[i]].partition_start);
partition_size = get_unaligned(&table[part_order[i]].partition_size);
sprintf(drive_name, "%s%d", dev->name, dev->id);
sprintf(partition_name, "%s%d.%d", dev->name, dev->id, i);
if (table[part_order[i]].partition_start != 0) {
if (partition_start != 0) {
#if 1
/* ignore partitions we can't handle due to 32 bit limits */
if (table[part_order[i]].partition_start > 0x7fffff)
if (partition_start > 0x7fffff)
continue;
if (table[part_order[i]].partition_size > 0x7fffff)
if (partition_size > 0x7fffff)
continue;
#endif
dev_dbg(dev, "Registering partition %s to drive %s\n",
partition_name, drive_name);
rc = devfs_add_partition(drive_name,
table[part_order[i]].partition_start * SECTOR_SIZE,
table[part_order[i]].partition_size * SECTOR_SIZE,
partition_start * SECTOR_SIZE,
partition_size * SECTOR_SIZE,
DEVFS_PARTITION_FIXED, partition_name);
if (rc != 0)
dev_err(dev, "Failed to register partition %s (%d)\n", partition_name, rc);