[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>

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 7a55c2e..87f8282 100644 (file)
--- 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.