diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2009-10-10 16:07:03 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2009-10-14 17:36:53 +0200 |
| commit | d2a7be0be1099c2554f4705d2c1c5081f8f96efc (patch) | |
| tree | 92b7542288a26292c3e49b09121a9831ad7350a1 /drivers/char/tb0219.c | |
| parent | drivers: Remove BKL from scx200_gpio (diff) | |
| download | linux-d2a7be0be1099c2554f4705d2c1c5081f8f96efc.tar.xz linux-d2a7be0be1099c2554f4705d2c1c5081f8f96efc.zip | |
mips: Remove BKL from tb0219
cycle_kernel_lock() was added during the big BKL pushdown. It should
ensure the serializiation against driver init code.
tb0219_base is initialized before the character device is
registered, but the spinlock is not initialized.
Initialize the spinlock statically and remove cycle_kernel_lock().
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <20091010153350.222654356@linutronix.de>
Cc: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'drivers/char/tb0219.c')
| -rw-r--r-- | drivers/char/tb0219.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/char/tb0219.c b/drivers/char/tb0219.c index b3ec9b10e292..cad4eb65f13d 100644 --- a/drivers/char/tb0219.c +++ b/drivers/char/tb0219.c @@ -21,7 +21,6 @@ #include <linux/fs.h> #include <linux/init.h> #include <linux/module.h> -#include <linux/smp_lock.h> #include <asm/io.h> #include <asm/reboot.h> @@ -38,7 +37,7 @@ MODULE_PARM_DESC(major, "Major device number"); static void (*old_machine_restart)(char *command); static void __iomem *tb0219_base; -static spinlock_t tb0219_lock; +static DEFINE_SPINLOCK(tb0219_lock); #define tb0219_read(offset) readw(tb0219_base + (offset)) #define tb0219_write(offset, value) writew((value), tb0219_base + (offset)) @@ -237,7 +236,6 @@ static int tanbac_tb0219_open(struct inode *inode, struct file *file) { unsigned int minor; - cycle_kernel_lock(); minor = iminor(inode); switch (minor) { case 0: @@ -306,8 +304,6 @@ static int __devinit tb0219_probe(struct platform_device *dev) return retval; } - spin_lock_init(&tb0219_lock); - old_machine_restart = _machine_restart; _machine_restart = tb0219_restart; |