linux-kernel - [PATCH 05/18] ide-disk: move IDE_DFLAG_DOORLOCKING flag handling to idedisk_set

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Message-Id: <20080907221458.24285.31795.sendpatchset@localhost.localdomain>
Date:	Mon, 08 Sep 2008 00:14:58 +0200
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	linux-ide@...r.kernel.org
Cc:	Borislav Petkov <petkovbb@...il.com>,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 05/18] ide-disk: move IDE_DFLAG_DOORLOCKING flag handling to idedisk_set_doorlock()

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@...il.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
 drivers/ide/ide-disk.c |   22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

Index: b/drivers/ide/ide-disk.c
===================================================================
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -811,12 +811,21 @@ static ide_driver_t idedisk_driver = {
 static int idedisk_set_doorlock(ide_drive_t *drive, int on)
 {
 	ide_task_t task;
+	int ret;
+
+	if ((drive->dev_flags & IDE_DFLAG_DOORLOCKING) == 0)
+		return 0;
 
 	memset(&task, 0, sizeof(task));
 	task.tf.command = on ? ATA_CMD_MEDIA_LOCK : ATA_CMD_MEDIA_UNLOCK;
 	task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
 
-	return ide_no_data_taskfile(drive, &task);
+	ret = ide_no_data_taskfile(drive, &task);
+
+	if (ret)
+		drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;
+
+	return ret;
 }
 
 static int idedisk_open(struct inode *inode, struct file *filp)
@@ -839,9 +848,7 @@ static int idedisk_open(struct inode *in
 		 * since the open() has already succeeded,
 		 * and the door_lock is irrelevant at this point.
 		 */
-		if ((drive->dev_flags & IDE_DFLAG_DOORLOCKING) &&
-		    idedisk_set_doorlock(drive, 1))
-			drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;
+		idedisk_set_doorlock(drive, 1);
 		check_disk_change(inode->i_bdev);
 	}
 	return 0;
@@ -856,11 +863,8 @@ static int idedisk_release(struct inode 
 	if (idkp->openers == 1)
 		ide_cacheflush_p(drive);
 
-	if ((drive->dev_flags & IDE_DFLAG_REMOVABLE) && idkp->openers == 1) {
-		if ((drive->dev_flags & IDE_DFLAG_DOORLOCKING) &&
-		    idedisk_set_doorlock(drive, 0))
-			drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;
-	}
+	if ((drive->dev_flags & IDE_DFLAG_REMOVABLE) && idkp->openers == 1)
+		idedisk_set_doorlock(drive, 0);
 
 	idkp->openers--;
 
--
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