linux-kernel - [139/152] mv_xor: fix race in tasklet function

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Message-Id: <20110106002309.776735478@clark.site>
Date:	Wed, 05 Jan 2011 16:23:58 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Saeed Bishara <saeed@...vell.com>,
	Dan Williams <dan.j.williams@...el.com>
Subject: [139/152] mv_xor: fix race in tasklet function

2.6.36-stable review patch.  If anyone has any objections, please let us know.

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

From: Saeed Bishara <saeed@...vell.com>

commit 8333f65ef094e47020cd01452b4637e7daf5a77f upstream.

use mv_xor_slot_cleanup() instead of __mv_xor_slot_cleanup() as the former function
aquires the spin lock that needed to protect the drivers data.

Signed-off-by: Saeed Bishara <saeed@...vell.com>
Signed-off-by: Dan Williams <dan.j.williams@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/dma/mv_xor.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -449,7 +449,7 @@ mv_xor_slot_cleanup(struct mv_xor_chan *
 static void mv_xor_tasklet(unsigned long data)
 {
 	struct mv_xor_chan *chan = (struct mv_xor_chan *) data;
-	__mv_xor_slot_cleanup(chan);
+	mv_xor_slot_cleanup(chan);
 }
 
 static struct mv_xor_desc_slot *


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