linux-kernel - [ 040/105] md/raid10: use correct limit variable

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Message-Id: <20121028231549.451898184@decadent.org.uk>
Date:	Sun, 28 Oct 2012 23:16:16 +0000
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Dan Carpenter <dan.carpenter@...cle.com>,
	NeilBrown <neilb@...e.de>
Subject: [ 040/105] md/raid10: use correct limit variable

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

------------------

From: Dan Carpenter <dan.carpenter@...cle.com>

commit 91502f099dfc5a1e8812898e26ee280713e1d002 upstream.

Clang complains that we are assigning a variable to itself.  This should
be using bad_sectors like the similar earlier check does.

Bug has been present since 3.1-rc1.  It is minor but could
conceivably cause corruption or other bad behaviour.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: NeilBrown <neilb@...e.de>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/md/raid10.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 146749b..867d1b4 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -3218,7 +3218,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
 				else {
 					bad_sectors -= (sector - first_bad);
 					if (max_sync > bad_sectors)
-						max_sync = max_sync;
+						max_sync = bad_sectors;
 					continue;
 				}
 			}


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