linux-kernel - [PATCH 6/9] ide: remove BUG() from ide_complete

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Message-Id: <20090209200128.7985.59685.sendpatchset@localhost.localdomain>
Date:	Mon, 09 Feb 2009 21:01:28 +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 6/9] ide: remove BUG() from ide_complete_rq()

From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Subject: [PATCH] ide: remove BUG() from ide_complete_rq()

It is no longer needed so remove it, also while at it dequeue the request
only on blk_end_request() success and make ide_complete_rq() return an error
value.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
 drivers/ide/ide-io.c |   10 ++++++----
 include/linux/ide.h  |    2 +-
 2 files changed, 7 insertions(+), 5 deletions(-)

Index: b/drivers/ide/ide-io.c
===================================================================
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -137,15 +137,17 @@ void ide_complete_cmd(ide_drive_t *drive
 		kfree(cmd);
 }
 
-void ide_complete_rq(ide_drive_t *drive, int error)
+int ide_complete_rq(ide_drive_t *drive, int error)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct request *rq = hwif->rq;
+	int rc;
 
-	hwif->rq = NULL;
+	rc = blk_end_request(rq, error, blk_rq_bytes(rq));
+	if (rc == 0)
+		hwif->rq = NULL;
 
-	if (unlikely(blk_end_request(rq, error, blk_rq_bytes(rq))))
-		BUG();
+	return rc;
 }
 EXPORT_SYMBOL(ide_complete_rq);
 
Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1163,7 +1163,7 @@ extern int ide_devset_execute(ide_drive_
 			      const struct ide_devset *setting, int arg);
 
 void ide_complete_cmd(ide_drive_t *, struct ide_cmd *, u8, u8);
-void ide_complete_rq(ide_drive_t *, int);
+int ide_complete_rq(ide_drive_t *, int);
 
 void ide_tf_dump(const char *, struct ide_taskfile *);
 
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