From: Albert Lee <albertcc@tw.ibm.com>
Date: Thu, 28 Jun 2007 02:05:31 +0000 (+0800)
Subject: libata: remove reading alt_status from ata_hsm_qc_complete()
X-Git-Tag: v2.6.22~48^2~4
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=74cdbba42dd515887ef3fc0ab498e70bd086c075;p=linux-2.6-omap-h63xx.git

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>
---

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index bfc59a10472..95671d6a0ce 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 */
 }
 
 /**