linux-kernel - [PATCH 3.12 21/72] md/raid1: submit_bio

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Message-Id: <4ab46026e088c6e7801e278101d66a60ce6b72b8.1448283890.git.jslaby@suse.cz>
Date:	Mon, 23 Nov 2015 14:08:43 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Jes Sorensen <Jes.Sorensen@...hat.com>,
	NeilBrown <neilb@...e.com>, Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 21/72] md/raid1: submit_bio_wait() returns 0 on success

From: Jes Sorensen <Jes.Sorensen@...hat.com>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 203d27b0226a05202438ddb39ef0ef1acb14a759 upstream.

This was introduced with 9e882242c6193ae6f416f2d8d8db0d9126bd996b
which changed the return value of submit_bio_wait() to return != 0 on
error, but didn't update the caller accordingly.

Fixes: 9e882242c6 ("block: Add submit_bio_wait(), remove from md")
Reported-by: Bill Kuzeja <William.Kuzeja@...atus.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@...hat.com>
Signed-off-by: NeilBrown <neilb@...e.com>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/md/raid1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 1cb7642c1ba9..479828ad2021 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2148,7 +2148,7 @@ static int narrow_write_error(struct r1bio *r1_bio, int i)
 		md_trim_bio(wbio, sector - r1_bio->sector, sectors);
 		wbio->bi_sector += rdev->data_offset;
 		wbio->bi_bdev = rdev->bdev;
-		if (submit_bio_wait(WRITE, wbio) == 0)
+		if (submit_bio_wait(WRITE, wbio) < 0)
 			/* failure! */
 			ok = rdev_set_badblocks(rdev, sector,
 						sectors, 0)
-- 
2.6.3

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