[PATCH] libata: fix passthru sense data header

sb[7] should contain the length of whole information sense data
descriptor while desc[1] should contain the number of following bytes
in the descriptor.  ie. 14 for sb[7] but 12 for desc[1].

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 3 insertions, 6 deletions

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 7a55c2e4ea6e..87f82827c1bf 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -713,12 +713,9 @@ void ata_gen_ata_desc_sense(struct ata_queued_cmd *qc)
 
         desc[0] = 0x09;
 
-        /*
-         * Set length of additional sense data.
-         * Since we only populate descriptor 0, the total
-         * length is the same (fixed) length as descriptor 0.
-         */
-        desc[1] = sb[7] = 14;
+        /* set length of additional sense data */
+        sb[7] = 14;
+        desc[1] = 12;
 
         /*
          * Copy registers into sense buffer.