From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 11:46:31 +0000 (+0100)
Subject: ide: no need to read Status and Error registers for "empty" taskfile requests
X-Git-Tag: firefly_0821_release~15198^2~42
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5e76acd588c125fbd37390e44868dcb07cadbe4a;p=firefly-linux-kernel-4.4.55.git

ide: no need to read Status and Error registers for "empty" taskfile requests

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 4a97a97e56c4..45fc18ff73cb 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -337,9 +337,7 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
 #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;
 }