From: Saeed Bishara <saeed@marvell.com>
Date: Tue, 21 Dec 2010 14:53:39 +0000 (+0200)
Subject: mv_xor: fix race in tasklet function
X-Git-Tag: firefly_0821_release~10186^2~578
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9e180aacc3563130dc34b725a6e595d46c1906f9;p=firefly-linux-kernel-4.4.55.git

mv_xor: fix race in tasklet function

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@marvell.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index f2b44d51d826..076d599a1bde 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -448,7 +448,7 @@ mv_xor_slot_cleanup(struct mv_xor_chan *mv_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 *