libata: remove reading alt_status from ata_hsm_qc_complete()

In ata_hsm_qc_complete():
Calling ata_altstatus() after the qc is completed might race with next qc. Remove it.

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 0 insertions, 2 deletions

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index bfc59a104728..95671d6a0ce5 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4781,8 +4781,6 @@ static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq)
                 } else
                         ata_qc_complete(qc);
         }
-
-        ata_altstatus(ap); /* flush */
 }
 
 /**