[libata] Fix decoding of 6-byte commands
The code for parsing 6-byte SCSI command LBAs
missed the top 5 bits (the MSB).
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 242c43e..b3900cf 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -1050,14 +1050,15 @@
static void scsi_6_lba_len(const u8 *cdb, u64 *plba, u32 *plen)
{
u64 lba = 0;
- u32 len = 0;
+ u32 len;
VPRINTK("six-byte command\n");
+ lba |= ((u64)(cdb[1] & 0x1f)) << 16;
lba |= ((u64)cdb[2]) << 8;
lba |= ((u64)cdb[3]);
- len |= ((u32)cdb[4]);
+ len = cdb[4];
*plba = lba;
*plen = len;