diff options
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/pc8736x_gpio.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/char/pc8736x_gpio.c b/drivers/char/pc8736x_gpio.c index b8183d50833..72dcf222f14 100644 --- a/drivers/char/pc8736x_gpio.c +++ b/drivers/char/pc8736x_gpio.c @@ -16,6 +16,7 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/ioport.h> +#include <linux/mutex.h> #include <linux/nsc_gpio.h> #include <linux/platform_device.h> #include <asm/uaccess.h> @@ -31,7 +32,7 @@ static int major; /* default to dynamic major */ module_param(major, int, 0); MODULE_PARM_DESC(major, "Major device number"); -static DEFINE_SPINLOCK(pc8736x_gpio_config_lock); +static DEFINE_MUTEX(pc8736x_gpio_config_lock); static unsigned pc8736x_gpio_base; static u8 pc8736x_gpio_shadow[4]; @@ -119,9 +120,8 @@ static inline u32 pc8736x_gpio_configure_fn(unsigned index, u32 mask, u32 bits, u32 func_slct) { u32 config, new_config; - unsigned long flags; - spin_lock_irqsave(&pc8736x_gpio_config_lock, flags); + mutex_lock(&pc8736x_gpio_config_lock); device_select(SIO_GPIO_UNIT); select_pin(index); @@ -133,7 +133,7 @@ static inline u32 pc8736x_gpio_configure_fn(unsigned index, u32 mask, u32 bits, new_config = (config & mask) | bits; superio_outb(func_slct, new_config); - spin_unlock_irqrestore(&pc8736x_gpio_config_lock, flags); + mutex_unlock(&pc8736x_gpio_config_lock); return config; } |