sonypi: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
parent
0410e689b1
commit
f8f2c79d59
1 changed files with 3 additions and 0 deletions
|
@ -49,6 +49,7 @@
|
|||
#include <linux/err.h>
|
||||
#include <linux/kfifo.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/smp_lock.h>
|
||||
|
||||
#include <asm/uaccess.h>
|
||||
#include <asm/io.h>
|
||||
|
@ -906,12 +907,14 @@ static int sonypi_misc_release(struct inode *inode, struct file *file)
|
|||
|
||||
static int sonypi_misc_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
lock_kernel();
|
||||
mutex_lock(&sonypi_device.lock);
|
||||
/* Flush input queue on first open */
|
||||
if (!sonypi_device.open_count)
|
||||
kfifo_reset(sonypi_device.fifo);
|
||||
sonypi_device.open_count++;
|
||||
mutex_unlock(&sonypi_device.lock);
|
||||
unlock_kernel();
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in a new issue