linux-kernel - [PATCH] mtd: mtdblock: Use DEFINE_MUTEX() for mtdblks

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Date:	Fri, 03 Jun 2011 14:10:22 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Artem Bityutskiy <Artem.Bityutskiy@...ia.com>,
	Matthias Kaehlcke <matthias@...hlcke.net>,
	David Woodhouse <dwmw2@...radead.org>,
	linux-mtd@...ts.infradead.org
Subject: [PATCH] mtd: mtdblock: Use DEFINE_MUTEX() for mtdblks_lock

mtdblks_lock can be initialized automatically with
DEFINE_MUTEX() rather than explicitly calling mutex_init().

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 drivers/mtd/mtdblock.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index 3326615..1976b6c 100644
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -44,7 +44,7 @@ struct mtdblk_dev {
 	enum { STATE_EMPTY, STATE_CLEAN, STATE_DIRTY } cache_state;
 };
 
-static struct mutex mtdblks_lock;
+static DEFINE_MUTEX(mtdblks_lock);
 
 /*
  * Cache stuff...
@@ -389,8 +389,6 @@ static struct mtd_blktrans_ops mtdblock_tr = {
 
 static int __init init_mtdblock(void)
 {
-	mutex_init(&mtdblks_lock);
-
 	return register_mtd_blktrans(&mtdblock_tr);
 }
 
-- 
1.7.4.1



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