Techwizz/kernel-fxtec-pro1x
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drivers: Remove BKL from scx200_gpio

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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@linutronix.de>
LKML-Reference: <20091010153350.167321547@linutronix.de>
Acked-by: Jim Cromie <jim.cromie@gmail.com>
This commit is contained in:
Thomas Gleixner 2009-10-10 16:02:53 +02:00
parent 71d69bc2c0
commit 3a8183a206
1 changed files with 0 additions and 2 deletions
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2
drivers/char/scx200_gpio.c
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@ -12,7 +12,6 @@
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/smp_lock.h>
#include <asm/uaccess.h> #include <asm/uaccess.h>
#include <asm/io.h> #include <asm/io.h>
@ -52,7 +51,6 @@ static int scx200_gpio_open(struct inode *inode, struct file *file)
unsigned m = iminor(inode); unsigned m = iminor(inode);
file->private_data = &scx200_gpio_ops; file->private_data = &scx200_gpio_ops;
cycle_kernel_lock();
if (m >= MAX_PINS) if (m >= MAX_PINS)
return -EINVAL; return -EINVAL;
return nonseekable_open(inode, file); return nonseekable_open(inode, file);