libata: kill dead code paths in reset path

Some code paths which had been made obsolete by recent reset
simplification were still around.  Kill them.

* ata_eh_reset() checked for ATA_DEV_UNKNOWN to determine
  classification failure.  This is no longer applicable.

* ata_do_reset() should convert ATA_DEV_UNKNOWN to ATA_DEV_NONE
  regardless of reset result (e.g. -EAGAIN).

* LLDs don't need to convert ATA_DEV_UNKNOWN to ATA_DEV_NONE.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c
index 9f47d0022453..d27bb9a2568f 100644
--- a/drivers/ata/sata_inic162x.c
+++ b/drivers/ata/sata_inic162x.c
@@ -428,8 +428,6 @@ static int inic_hardreset(struct ata_link *link, unsigned int *class,
 
                 ata_sff_tf_read(ap, &tf);
                 *class = ata_dev_classify(&tf);
-                if (*class == ATA_DEV_UNKNOWN)
-                        *class = ATA_DEV_NONE;
         }
 
         return 0;