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| author | Arnd Bergmann <arnd@arndb.de> | 2008-05-20 19:16:45 +0200 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2008-07-02 23:06:25 +0200 |
| commit | 0410e689b19b6ca010a6a44abfa820968ae15733 (patch) | |
| tree | ab03276fbc49d1d27d4a7bd4e32e9c2a245fd1df /drivers/misc/sony-laptop.c | |
| parent | serio: BKL pushdown (diff) | |
| download | linux-0410e689b19b6ca010a6a44abfa820968ae15733.tar.xz linux-0410e689b19b6ca010a6a44abfa820968ae15733.zip | |
sony-laptop: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to '')
| -rw-r--r-- | drivers/misc/sony-laptop.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c index 00e48e2a9c11..60775be22822 100644 --- a/drivers/misc/sony-laptop.c +++ b/drivers/misc/sony-laptop.c @@ -46,6 +46,7 @@ #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> @@ -1927,8 +1928,10 @@ 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(); if (atomic_inc_return(&sonypi_compat.open_count) == 1) kfifo_reset(sonypi_compat.fifo); + unlock_kernel(); return 0; } |