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-rw-r--r--drivers/ata/libata-core.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index f38e2afd4146..2bcf35028a7d 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1190,14 +1190,16 @@ static u64 ata_id_n_sectors(const u16 *id)
{
if (ata_id_has_lba(id)) {
if (ata_id_has_lba48(id))
- return ata_id_u64(id, 100);
+ return ata_id_u64(id, ATA_ID_LBA_CAPACITY_2);
else
- return ata_id_u32(id, 60);
+ return ata_id_u32(id, ATA_ID_LBA_CAPACITY);
} else {
if (ata_id_current_chs_valid(id))
- return ata_id_u32(id, 57);
+ return id[ATA_ID_CUR_CYLS] * id[ATA_ID_CUR_HEADS] *
+ id[ATA_ID_CUR_SECTORS];
else
- return id[1] * id[3] * id[6];
+ return id[ATA_ID_CYLS] * id[ATA_ID_HEADS] *
+ id[ATA_ID_SECTORS];
}
}