From: Alessio Igor Bogani <abogani@xxxxxxxxxx>
Signed-off-by: Alessio Igor Bogani <abogani@xxxxxxxxxx>
Signed-off-by: Mattia Dongili <malattia@xxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
---
drivers/platform/x86/sony-laptop.c | 12 ++++++++----
1 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index fc0dd63..0f71031 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -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;
}
--
1.6.0.6
--
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