linux-kernel - [tip:bkl/drivers] drivers: Remove BKL from scx200

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Date:	Wed, 14 Oct 2009 15:50:59 GMT
From:	tip-bot for Thomas Gleixner <tglx@...utronix.de>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	jim.cromie@...il.com, tglx@...utronix.de
Subject: [tip:bkl/drivers] drivers: Remove BKL from scx200_gpio

Commit-ID:  3a8183a2061ba54c4c2b3cd31c3add6fd717e853
Gitweb:     http://git.kernel.org/tip/3a8183a2061ba54c4c2b3cd31c3add6fd717e853
Author:     Thomas Gleixner <tglx@...utronix.de>
AuthorDate: Sat, 10 Oct 2009 16:02:53 +0200
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Wed, 14 Oct 2009 17:36:53 +0200

drivers: Remove BKL from scx200_gpio

cycle_kernel_lock() was added during the big BKL pushdown. It should
ensure the serializiation against driver init code. In this case there
is nothing to serialize. Remove it.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
LKML-Reference: <20091010153350.167321547@...utronix.de>
Acked-by: Jim Cromie <jim.cromie@...il.com>
---
 drivers/char/scx200_gpio.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/drivers/char/scx200_gpio.c b/drivers/char/scx200_gpio.c
index 1d91005..99e5272 100644
--- a/drivers/char/scx200_gpio.c
+++ b/drivers/char/scx200_gpio.c
@@ -12,7 +12,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/smp_lock.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
@@ -52,7 +51,6 @@ static int scx200_gpio_open(struct inode *inode, struct file *file)
 	unsigned m = iminor(inode);
 	file->private_data = &scx200_gpio_ops;
 
-	cycle_kernel_lock();
 	if (m >= MAX_PINS)
 		return -EINVAL;
 	return nonseekable_open(inode, file);
--
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