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OpenCloudOS-Kernel
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sony-laptop: Kill the BKL 

Signed-off-by: Alessio Igor Bogani <abogani@texware.it>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Alessio Igor Bogani 2009-03-26 21:58:25 +09:00 committed by Len Brown
parent 3741834775
commit 4ef4cbb368
1 changed files with 8 additions and 4 deletions
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12
drivers/platform/x86/sony-laptop.c
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@ -46,7 +46,6 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/smp_lock.h>
#include <linux/types.h>
#include <linux/backlight.h>
#include <linux/platform_device.h>
@ -2180,10 +2179,15 @@ static int sonypi_misc_release(struct inode *inode, struct file *file)
static int sonypi_misc_open(struct inode *inode, struct file *file)
{
/* Flush input queue on first open */
lock_kernel();
unsigned long flags;
spin_lock_irqsave(sonypi_compat.fifo->lock, flags);
if (atomic_inc_return(&sonypi_compat.open_count) == 1)
kfifo_reset(sonypi_compat.fifo);
unlock_kernel();
__kfifo_reset(sonypi_compat.fifo);
spin_unlock_irqrestore(sonypi_compat.fifo->lock, flags);
return 0;
}