linux-kernel - [PATCH 13/15] ide: no need to read Status and Error registers for "empty" taskfile requests

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Date:	Sun, 01 Feb 2009 18:50:40 +0100
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	linux-ide@...r.kernel.org
Cc:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 13/15] ide: no need to read Status and Error registers for "empty" taskfile requests

From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Subject: [PATCH] ide: no need to read Status and Error registers for "empty" taskfile requests

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
 drivers/ide/ide-io.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

Index: b/drivers/ide/ide-io.c
===================================================================
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -333,9 +333,7 @@ static ide_startstop_t execute_drive_cmd
 #ifdef DEBUG
  	printk("%s: DRIVE_CMD (null)\n", drive->name);
 #endif
-	(void)hwif->tp_ops->read_status(hwif);
-
-	ide_complete_rq(drive, ide_read_error(drive));
+	ide_complete_rq(drive, 0);
 
  	return ide_stopped;
 }
--
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